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CVE-2020-27350 (GCVE-0-2020-27350)

Vulnerability from cvelistv5 – Published: 2020-12-10 04:05 – Updated: 2024-09-17 04:29
VLAI
Title
apt integer wraparound
Summary
APT had several integer overflows and underflows while parsing .deb packages, aka GHSL-2020-168 GHSL-2020-169, in files apt-pkg/contrib/extracttar.cc, apt-pkg/deb/debfile.cc, and apt-pkg/contrib/arfile.cc. This issue affects: apt 1.2.32ubuntu0 versions prior to 1.2.32ubuntu0.2; 1.6.12ubuntu0 versions prior to 1.6.12ubuntu0.2; 2.0.2ubuntu0 versions prior to 2.0.2ubuntu0.2; 2.1.10ubuntu0 versions prior to 2.1.10ubuntu0.1;
Severity
5.7 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
Vendor Product Version CPE status
Canonical apt Affected: 1.2.32ubuntu0 , < 1.2.32ubuntu0.2 (custom)
Affected: 1.6.12ubuntu0 , < 1.6.12ubuntu0.2 (custom)
Affected: 2.0.2ubuntu0 , < 2.0.2ubuntu0.2 (custom)
Affected: 2.1.10ubuntu0 , < 2.1.10ubuntu0.1 (custom)
guessed Create a notification for this product.
Date Public
2020-12-09 00:00
Credits
Kevin Backhouse
Show details on NVD website
To clipboard 

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    "nvd": "{\"cve\":{\"id\":\"CVE-2020-27350\",\"sourceIdentifier\":\"security@ubuntu.com\",\"published\":\"2020-12-10T04:15:11.423\",\"lastModified\":\"2024-11-21T05:21:02.867\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"APT had several integer overflows and underflows while parsing .deb packages, aka GHSL-2020-168 GHSL-2020-169, in files apt-pkg/contrib/extracttar.cc, apt-pkg/deb/debfile.cc, and apt-pkg/contrib/arfile.cc. This issue affects: apt 1.2.32ubuntu0 versions prior to 1.2.32ubuntu0.2; 1.6.12ubuntu0 versions prior to 1.6.12ubuntu0.2; 2.0.2ubuntu0 versions prior to 2.0.2ubuntu0.2; 2.1.10ubuntu0 versions prior to 2.1.10ubuntu0.1;\"},{\"lang\":\"es\",\"value\":\"APT tuvo varios desbordamientos y subdesbordamientos de enteros al analizar paquetes .deb, tambi\u00e9n se conocen como GHSL-2020-168 GHSL-2020-169, en los archivos apt-pkg/contrib/extracttar.cc, apt-pkg/deb/debfile.cc, and apt-pkg/contrib/arfile.cc.\u0026#xa0;Este problema afecta: apt versiones 1.2.32ubuntu0 anteriores a 1.2.32ubuntu0.2; versiones 1.6.12ubuntu0 anteriores a 1.6.12ubuntu0.2; versiones 2.0.2ubuntu0 anteriores a 2.0.2ubuntu0.2; versiones 2.1.10ubuntu0 anteriores a 2.1.10ubuntu0.1;\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@ubuntu.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L\",\"baseScore\":5.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.5,\"impactScore\":3.7},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L\",\"baseScore\":5.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.5,\"impactScore\":3.7}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":4.6,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security@ubuntu.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-190\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-190\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.2.32ubuntu0\",\"versionEndExcluding\":\"1.2.32ubuntu0.2\",\"matchCriteriaId\":\"839A276F-A612-435F-8B32-9CD0881A703F\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.6.12ubuntu0\",\"versionEndExcluding\":\"1.6.12ubuntu0.2\",\"matchCriteriaId\":\"32808FF1-724F-42B2-8720-F03F2DCB87E8\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.0.2ubuntu0\",\"versionEndExcluding\":\"2.0.2ubuntu0.2\",\"matchCriteriaId\":\"84E29564-98E9-4F1E-B86C-7F835BDF47CF\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"902B8056-9E37-443B-8905-8AA93E2447FB\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.1.10ubuntu0\",\"versionEndExcluding\":\"2.1.10ubuntu0.2\",\"matchCriteriaId\":\"423237C5-087E-4E29-8B3B-D7121302E698\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:20.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"338B3AAC-C147-4A31-95E7-6E8A6FB4B3FC\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.8.2.2\",\"matchCriteriaId\":\"91DB2AC6-4123-412A-BBCB-C8545A292E30\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FB9B8171-F6CA-427D-81E0-6536D3BBFA8D\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"090AA6F4-4404-4E26-82AB-C3A22636F276\"}]}]}],\"references\":[{\"url\":\"https://bugs.launchpad.net/bugs/1899193\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Broken Link\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210108-0005/\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/usn/usn-4667-1\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.debian.org/security/2020/dsa-4808\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://bugs.launchpad.net/bugs/1899193\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Broken Link\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210108-0005/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/usn/usn-4667-1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.debian.org/security/2020/dsa-4808\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2026-02-23T19:16:48+00:00",
      "cve": "CVE-2020-27350",
      "id": "CVE-2020-27350",
      "initial_release_date": "2020-12-10T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "apt: integer overflows and underflows while parsing .deb packages",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-27350.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.