Vulnerability-Lookup

CVE-2022-2929 (GCVE-0-2022-2929)

Vulnerability from cvelistv5 – Published: 2022-10-07 04:45 – Updated: 2024-09-16 18:28

Title

DHCP memory leak

Summary

In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

The function fqdn_universe_decode() allocates buffer space for the contents of option 81 (fqdn) data received in a DHCP packet. The maximum length of a DNS label is 63 bytes. The function tests the length byte of each label contained in the fqdn; if it finds a label whose length byte value is larger than 63, it returns without dereferencing the buffer space. This will cause a memory leak. Affects In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1

Assigner

isc mitre root

References

6 references

URL	Tags
https://kb.isc.org/docs/cve-2022-2929
https://lists.debian.org/debian-lts-announce/2022…	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.gentoo.org/glsa/202305-22	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
ISC	ISC DHCP	Affected: 1.0 through versions before 4.1-ESV-R16-P2 Affected: 4.2 through versions before 4.4.3.-P1	guessed

Date Public

2022-10-05 00:00

Credits

ISC would like to thank VictorV of Cyber Kunlun Lab for discovering and reporting this issue.

Show details on NVD website

JSON

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      "id": "CVE-2022-2929",
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    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T01:36:43.000Z",
      "cve": "CVE-2022-2929",
      "id": "msrc_CVE-2022-2929",
      "initial_release_date": "2022-10-02T00:00:00.000Z",
      "product_status:fixed": "4",
      "product_status:known_affected": "4",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "DHCP memory leak",
      "url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2022-2929.json",
      "version": "2"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-2929\",\"sourceIdentifier\":\"security-officer@isc.org\",\"published\":\"2022-10-07T05:15:11.320\",\"lastModified\":\"2026-06-17T04:42:50.300\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In ISC DHCP 1.0 -\u003e 4.4.3, ISC DHCP 4.1-ESV-R1 -\u003e 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.\"},{\"lang\":\"es\",\"value\":\"En ISC DHCP versiones 1.0 anteriores a 4.4.3, ISC DHCP versiones 4.1-ESV-R1 anteriores a 4.1-ESV-R16-P1, un sistema con acceso a un servidor DHCP, enviando paquetes DHCP dise\u00f1ados para incluir etiquetas fqdn de m\u00e1s de 63 bytes, podr\u00eda llegar a causar a el servidor quedarse sin memoria\"}],\"affected\":[{\"source\":\"security-officer@isc.org\",\"affectedData\":[{\"vendor\":\"ISC\",\"product\":\"ISC DHCP\",\"versions\":[{\"version\":\"1.0 through versions before 4.1-ESV-R16-P2\",\"status\":\"affected\"},{\"version\":\"4.2 through versions before 4.4.3.-P1\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-officer@isc.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-770\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.0.0\",\"versionEndExcluding\":\"4.1-esv\",\"matchCriteriaId\":\"29B372FC-4ADF-480F-82EA-677BA9CE80F9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.2.0\",\"versionEndIncluding\":\"4.4.3\",\"matchCriteriaId\":\"3828370A-E2C3-40C6-A4D4-A0E4FE932AD0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FBAABA4E-0D34-4644-AC26-E272CEE6C361\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r10:*:*:*:*:*:*\",\"matchCriteriaId\":\"179443DC-4B6A-408A-8BE5-B3E72188F43E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r10_b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"C9BE7736-58CD-468B-84AB-B38C9B254BA6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r10_rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7EB6F7F0-B2A0-47E3-AD7A-4E7618A36F90\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r10b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"CA5FAE54-1645-4A38-A431-10E67304399A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r10rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"2C0D1A71-CECB-4C86-87F6-EB3741BDF692\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r11:*:*:*:*:*:*\",\"matchCriteriaId\":\"ADF80D19-3B0A-4A74-944E-F33CCC30EADA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r11_b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"40B21FCB-43A8-4266-934D-ECFF8138F637\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r11_rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"69D49F23-9074-49E7-985F-4D93393324CD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r11_rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"3F729D1D-7234-4BC2-839B-AE1BB9D16C25\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r11b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"9E01D88D-876D-45FE-B7ED-089DAD801EF6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r11rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"C4B030B1-F008-4562-93C7-7E1C6D3D00F4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r11rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF656F5E-B317-4E0C-BF01-EC2A917142DC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r12:*:*:*:*:*:*\",\"matchCriteriaId\":\"FBA64EEC-C0C7-4F11-8131-2868691E54DB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r12-p1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FFD3109A-1D76-4EA7-BF39-0B203AD945CF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r12_b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"157520D7-AE39-4E23-A8CF-DD75EA78C055\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r12_p1:*:*:*:*:*:*\",\"matchCriteriaId\":\"B07118EC-9508-42B8-8D09-5CE310DA2B43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r12b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"2156D1BC-90AE-4AF3-964C-DAC7DCE14A5D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r13:*:*:*:*:*:*\",\"matchCriteriaId\":\"A157E664-6ACE-44CE-AC07-64898B182EA1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r13_b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0056BF7A-4A70-4F1D-89C2-25CCDB65217B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r13b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"BA8ADA07-94FA-4014-AF70-8FCAF5F0DB03\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r14:*:*:*:*:*:*\",\"matchCriteriaId\":\"1D21F05D-246F-41F5-81FD-286C26168E2E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r14_b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"12103C87-C942-481A-A68C-7BC83F964C06\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r14b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"A2E0124D-6330-4013-8145-4309FDAE60A8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r15:*:*:*:*:*:*\",\"matchCriteriaId\":\"924E91FF-495F-4963-827F-57F7340C6560\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r15-p1:*:*:*:*:*:*\",\"matchCriteriaId\":\"3BC02748-557A-4131-A372-D99B62B4B93B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r15_b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"76A11284-3D81-45F0-8055-17282945C14F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r16:*:*:*:*:*:*\",\"matchCriteriaId\":\"98431CF5-D4C2-4FCF-BA81-0BBB631546D2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:dhcp:4.1-esv:r16-p1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FEA9F857-B59F-4D2D-8F7B-0D1BF08E9712\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"80E516C0-98A4-4ADE-B69F-66A772E2BAAA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E30D0E6F-4AE8-4284-8716-991DFA48CC5D\"}]}]}],\"references\":[{\"url\":\"https://kb.isc.org/docs/cve-2022-2929\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2022/10/msg00015.html\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SARIK7KZ7MGQIWDRWZFAOSQSPXY4GOU/\",\"source\":\"security-officer@isc.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QQXYCIWUDILRCNBAIMVFCSGXBRKEPB4K/\",\"source\":\"security-officer@isc.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T6IBFH4MRRNJQVWEKILQ6I6CXWW766FX/\",\"source\":\"security-officer@isc.org\"},{\"url\":\"https://security.gentoo.org/glsa/202305-22\",\"source\":\"security-officer@isc.org\"},{\"url\":\"https://kb.isc.org/docs/cve-2022-2929\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2022/10/msg00015.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SARIK7KZ7MGQIWDRWZFAOSQSPXY4GOU/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QQXYCIWUDILRCNBAIMVFCSGXBRKEPB4K/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T6IBFH4MRRNJQVWEKILQ6I6CXWW766FX/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.gentoo.org/glsa/202305-22\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-03T01:40:47+00:00",
      "cve": "CVE-2022-2929",
      "id": "CVE-2022-2929",
      "initial_release_date": "2022-10-05T00:00:00+00:00",
      "product_status:fixed": "83",
      "product_status:known_affected": "11",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "dhcp: DHCP memory leak",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-2929.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-12T17:14:37Z",
      "cve": "CVE-2022-2929",
      "id": "CVE-2022-2929",
      "initial_release_date": "2023-02-15T03:32:12Z",
      "product_status:known_affected": "406",
      "product_status:recommended": "295",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-2929",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-2929.json",
      "version": "49"
    }
  }
}

OPENSUSE-SU-2024:12390-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2024-06-15 00:00

Summary

dhcp-4.4.2.P1-11.1 on GA media

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2022-2929.

CVE-2022-2929

6.5 (Medium)


                
                  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 24 products

Open the full advisory

RHSA-2023:2502

Vulnerability from csaf_redhat - Published: 2023-05-09 09:51 - Updated: 2026-07-03 01:44

Summary

Red Hat Security Advisory: dhcp security and enhancement update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2022-2929.

CVE-2022-2929

A vulnerability was found in the DHCP server where the "fqdn_universe_decode()" function allocates buffer space for the contents of option 81 (fqdn) data received in a DHCP packet. The maximum length of a DNS "label" is 63 bytes. The function tests the length byte of each label contained in the "fqdn"; if it finds a label whose length byte value is larger than 63, it returns without dereferencing the buffer space. This issue causes a memory leak. On a system with access to a DHCP server, an attacker from any adjacent network could send DHCP packets crafted to include "fqdn" labels longer than 63 bytes to the DHCP server, eventually causing the server to run out of memory and crash.

6.5 (Medium)


                
                  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 34 products

https://access.redhat.com/errata/RHSA-2023:2502

Open the full advisory

RHSA-2023:3000

Vulnerability from csaf_redhat - Published: 2023-05-16 08:42 - Updated: 2026-07-03 01:44

Summary

Red Hat Security Advisory: dhcp security and bug fix update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2022-2929.

CVE-2022-2929

6.5 (Medium)


                
                  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 49 products

https://access.redhat.com/errata/RHSA-2023:3000

Open the full advisory

RHSA-2023_2502

Vulnerability from csaf_redhat - Published: 2023-05-09 09:51 - Updated: 2024-11-22 20:53

Summary

Red Hat Security Advisory: dhcp security and enhancement update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2022-2929.

CVE-2022-2929

6.5 (Medium)


                
                  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 34 products

https://access.redhat.com/errata/RHSA-2023:2502

Open the full advisory

RHSA-2023_3000

Vulnerability from csaf_redhat - Published: 2023-05-16 08:42 - Updated: 2024-11-22 20:53

Summary

Red Hat Security Advisory: dhcp security and bug fix update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2022-2929.

CVE-2022-2929

6.5 (Medium)


                
                  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 49 products

https://access.redhat.com/errata/RHSA-2023:3000

Open the full advisory

SCA-2025-0009

Vulnerability from csaf_sick - Published: 2025-08-01 13:00 - Updated: 2025-08-01 13:00

Summary

Vulnerabilities affecting SICK TDC-E210GC

Scope

23 vulnerabilities in this advisory, including CVE-2022-2929.

CVE-2022-2929

6.5 (Medium)


                
                  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Known not affected: 1 product

Open the full advisory

SCA-2025-0011

Vulnerability from csaf_sick - Published: 2025-10-02 13:00 - Updated: 2025-10-02 13:00

Summary

Vulnerabilities affecting Endress+Hauser SSG-E210GC

Scope

23 vulnerabilities in this advisory, including CVE-2022-2929.

CVE-2022-2929

6.5 (Medium)


                
                  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Known not affected: 1 product

Open the full advisory

SUSE-SU-2022:3991-1

Vulnerability from csaf_suse - Published: 2022-11-15 12:54 - Updated: 2022-11-15 12:54

Summary

Security update for dhcp

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2022-2929.

CVE-2022-2929

6.5 (Medium)


                
                  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 88 products

Open the full advisory

SUSE-SU-2022:3992-1

Vulnerability from csaf_suse - Published: 2022-11-15 12:54 - Updated: 2022-11-15 12:54

Summary

Security update for dhcp

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2022-2929.

CVE-2022-2929

6.5 (Medium)


                
                  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 36 products

Open the full advisory

ubuntu-cve-2022-2929

Vulnerability from osv_ubuntu

Published

2022-10-05 00:00

Modified

2026-04-22 07:41

Summary

Details

Severity

6.5 (Medium)


                    
                      CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

6.5 (Medium)


                    
                      CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2022-2929	REPORT
	https://lists.isc.org/pipermail/dhcp-announce/202…	REPORT
	https://kb.isc.org/docs/cve-2022-2929	REPORT
	https://ubuntu.com/security/notices/USN-5658-1	ADVISORY
	https://ubuntu.com/security/notices/USN-5658-2	ADVISORY
	https://ubuntu.com/security/notices/USN-5658-3	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2022-2929	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "isc-dhcp-client",
            "binary_version": "4.2.4-7ubuntu12.13+esm2"
          },
          {
            "binary_name": "isc-dhcp-client-noddns",
            "binary_version": "4.2.4-7ubuntu12.13+esm2"
          },
          {
            "binary_name": "isc-dhcp-common",
            "binary_version": "4.2.4-7ubuntu12.13+esm2"
          },
          {
            "binary_name": "isc-dhcp-relay",
            "binary_version": "4.2.4-7ubuntu12.13+esm2"
          },
          {
            "binary_name": "isc-dhcp-server",
            "binary_version": "4.2.4-7ubuntu12.13+esm2"
          },
          {
            "binary_name": "isc-dhcp-server-ldap",
            "binary_version": "4.2.4-7ubuntu12.13+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "isc-dhcp",
        "purl": "pkg:deb/ubuntu/isc-dhcp@4.2.4-7ubuntu12.13+esm2?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.2.4-7ubuntu12.13+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2.4-7ubuntu8",
        "4.2.4-7ubuntu9",
        "4.2.4-7ubuntu10",
        "4.2.4-7ubuntu11",
        "4.2.4-7ubuntu12",
        "4.2.4-7ubuntu12.1",
        "4.2.4-7ubuntu12.2",
        "4.2.4-7ubuntu12.3",
        "4.2.4-7ubuntu12.4",
        "4.2.4-7ubuntu12.5",
        "4.2.4-7ubuntu12.6",
        "4.2.4-7ubuntu12.7",
        "4.2.4-7ubuntu12.8",
        "4.2.4-7ubuntu12.9",
        "4.2.4-7ubuntu12.10",
        "4.2.4-7ubuntu12.12",
        "4.2.4-7ubuntu12.13",
        "4.2.4-7ubuntu12.13+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "isc-dhcp-client",
            "binary_version": "4.3.3-5ubuntu12.10+esm2"
          },
          {
            "binary_name": "isc-dhcp-client-ddns",
            "binary_version": "4.3.3-5ubuntu12.10+esm2"
          },
          {
            "binary_name": "isc-dhcp-common",
            "binary_version": "4.3.3-5ubuntu12.10+esm2"
          },
          {
            "binary_name": "isc-dhcp-relay",
            "binary_version": "4.3.3-5ubuntu12.10+esm2"
          },
          {
            "binary_name": "isc-dhcp-server",
            "binary_version": "4.3.3-5ubuntu12.10+esm2"
          },
          {
            "binary_name": "isc-dhcp-server-ldap",
            "binary_version": "4.3.3-5ubuntu12.10+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "isc-dhcp",
        "purl": "pkg:deb/ubuntu/isc-dhcp@4.3.3-5ubuntu12.10+esm2?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.3-5ubuntu12.10+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.3.1-5ubuntu3",
        "4.3.1-5ubuntu4",
        "4.3.1-5ubuntu5",
        "4.3.3-5ubuntu1",
        "4.3.3-5ubuntu2",
        "4.3.3-5ubuntu4",
        "4.3.3-5ubuntu5",
        "4.3.3-5ubuntu7",
        "4.3.3-5ubuntu8",
        "4.3.3-5ubuntu9",
        "4.3.3-5ubuntu10",
        "4.3.3-5ubuntu11",
        "4.3.3-5ubuntu12",
        "4.3.3-5ubuntu12.1",
        "4.3.3-5ubuntu12.3",
        "4.3.3-5ubuntu12.4",
        "4.3.3-5ubuntu12.6",
        "4.3.3-5ubuntu12.7",
        "4.3.3-5ubuntu12.9",
        "4.3.3-5ubuntu12.10",
        "4.3.3-5ubuntu12.10+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "isc-dhcp-client",
            "binary_version": "4.3.5-3ubuntu7.4"
          },
          {
            "binary_name": "isc-dhcp-client-ddns",
            "binary_version": "4.3.5-3ubuntu7.4"
          },
          {
            "binary_name": "isc-dhcp-common",
            "binary_version": "4.3.5-3ubuntu7.4"
          },
          {
            "binary_name": "isc-dhcp-relay",
            "binary_version": "4.3.5-3ubuntu7.4"
          },
          {
            "binary_name": "isc-dhcp-server",
            "binary_version": "4.3.5-3ubuntu7.4"
          },
          {
            "binary_name": "isc-dhcp-server-ldap",
            "binary_version": "4.3.5-3ubuntu7.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "isc-dhcp",
        "purl": "pkg:deb/ubuntu/isc-dhcp@4.3.5-3ubuntu7.4?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.5-3ubuntu7.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.3.5-3ubuntu2",
        "4.3.5-3ubuntu3",
        "4.3.5-3ubuntu4",
        "4.3.5-3ubuntu5",
        "4.3.5-3ubuntu6",
        "4.3.5-3ubuntu7",
        "4.3.5-3ubuntu7.1",
        "4.3.5-3ubuntu7.2",
        "4.3.5-3ubuntu7.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "isc-dhcp-client",
            "binary_version": "4.4.1-2.1ubuntu5.20.04.4"
          },
          {
            "binary_name": "isc-dhcp-client-ddns",
            "binary_version": "4.4.1-2.1ubuntu5.20.04.4"
          },
          {
            "binary_name": "isc-dhcp-common",
            "binary_version": "4.4.1-2.1ubuntu5.20.04.4"
          },
          {
            "binary_name": "isc-dhcp-relay",
            "binary_version": "4.4.1-2.1ubuntu5.20.04.4"
          },
          {
            "binary_name": "isc-dhcp-server",
            "binary_version": "4.4.1-2.1ubuntu5.20.04.4"
          },
          {
            "binary_name": "isc-dhcp-server-ldap",
            "binary_version": "4.4.1-2.1ubuntu5.20.04.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "isc-dhcp",
        "purl": "pkg:deb/ubuntu/isc-dhcp@4.4.1-2.1ubuntu5.20.04.4?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.4.1-2.1ubuntu5.20.04.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.4.1-2ubuntu5",
        "4.4.1-2ubuntu6",
        "4.4.1-2.1ubuntu1",
        "4.4.1-2.1ubuntu2",
        "4.4.1-2.1ubuntu3",
        "4.4.1-2.1ubuntu4",
        "4.4.1-2.1ubuntu5",
        "4.4.1-2.1ubuntu5.20.04.1",
        "4.4.1-2.1ubuntu5.20.04.2",
        "4.4.1-2.1ubuntu5.20.04.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "isc-dhcp-client",
            "binary_version": "4.4.1-2.3ubuntu2.3"
          },
          {
            "binary_name": "isc-dhcp-client-ddns",
            "binary_version": "4.4.1-2.3ubuntu2.3"
          },
          {
            "binary_name": "isc-dhcp-common",
            "binary_version": "4.4.1-2.3ubuntu2.3"
          },
          {
            "binary_name": "isc-dhcp-relay",
            "binary_version": "4.4.1-2.3ubuntu2.3"
          },
          {
            "binary_name": "isc-dhcp-server",
            "binary_version": "4.4.1-2.3ubuntu2.3"
          },
          {
            "binary_name": "isc-dhcp-server-ldap",
            "binary_version": "4.4.1-2.3ubuntu2.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "isc-dhcp",
        "purl": "pkg:deb/ubuntu/isc-dhcp@4.4.1-2.3ubuntu2.3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.4.1-2.3ubuntu2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.4.1-2.3ubuntu1",
        "4.4.1-2.3ubuntu2",
        "4.4.1-2.3ubuntu2.1",
        "4.4.1-2.3ubuntu2.2"
      ]
    }
  ],
  "aliases": [],
  "details": "In ISC DHCP 1.0 -\u003e 4.4.3, ISC DHCP 4.1-ESV-R1 -\u003e 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.",
  "id": "UBUNTU-CVE-2022-2929",
  "modified": "2026-04-22T07:41:16Z",
  "published": "2022-10-05T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-2929"
    },
    {
      "type": "REPORT",
      "url": "https://lists.isc.org/pipermail/dhcp-announce/2022-October/000437.html"
    },
    {
      "type": "REPORT",
      "url": "https://kb.isc.org/docs/cve-2022-2929"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5658-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5658-2"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5658-3"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-2929"
    }
  ],
  "related": [
    "USN-5658-1",
    "USN-5658-2",
    "USN-5658-3"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-2929"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2022-2929 (GCVE-0-2022-2929)

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature