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usn-6620-1
Vulnerability from osv_ubuntu
Published
2024-02-01 12:41
Modified
2024-02-01 12:41
Summary
glibc vulnerabilities
Details
It was discovered that the GNU C Library incorrectly handled the syslog() function call. A local attacker could use this issue to execute arbitrary code and possibly escalate privileges.
References
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CVE-2023-6246 (GCVE-0-2023-6246)
Vulnerability from cvelistv5 – Published: 2024-01-31 14:06 – Updated: 2026-07-14 12:03
VLAI
EPSS
VEX
Title
Glibc: heap-based buffer overflow in __vsyslog_internal()
Summary
A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.
Severity
8.4 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
13 references
Impacted products
9 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | glibc |
Unaffected:
2.39
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Fedora | Fedora | ||
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
Date Public
2024-01-30 00:00
Credits
Red Hat would like to thank Qualys Threat Research Unit for reporting this issue.
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CVE-2023-6779 (GCVE-0-2023-6779)
Vulnerability from cvelistv5 – Published: 2024-01-31 14:07 – Updated: 2026-07-14 12:03
VLAI
EPSS
VEX
Title
Glibc: off-by-one heap-based buffer overflow in __vsyslog_internal()
Summary
An off-by-one heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when these functions are called with a message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
11 references
Impacted products
9 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | glibc |
Unaffected:
2.39
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Fedora | Fedora | ||
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
Date Public
2024-01-30 00:00
Credits
Red Hat would like to thank Qualys Threat Research Unit for reporting this issue.
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CVE-2023-6780 (GCVE-0-2023-6780)
Vulnerability from cvelistv5 – Published: 2024-01-31 14:08 – Updated: 2026-07-14 12:03
VLAI
EPSS
VEX
Title
Glibc: integer overflow in __vsyslog_internal()
Summary
An integer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when these functions are called with a very long message, leading to an incorrect calculation of the buffer size to store the message, resulting in undefined behavior. This issue affects glibc 2.37 and newer.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
11 references
Impacted products
9 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | glibc |
Unaffected:
2.39
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Fedora | Fedora | ||
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
Date Public
2024-01-30 00:00
Credits
Red Hat would like to thank Qualys Threat Research Unit for reporting this issue.
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ubuntu-cve-2023-6246
Vulnerability from osv_ubuntu
Published
2024-01-31 00:00
Modified
2026-04-22 07:45
Summary
Details
A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.
Severity
7.8 (High)
8.4 (High)
N/A (UNKNOWN)
References
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"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-dev-x32",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-i386",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-s390",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-x32",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "locales",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "locales-all",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "nscd",
"binary_version": "2.39-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "glibc",
"purl": "pkg:deb/ubuntu/glibc@2.39-0ubuntu1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.39-0ubuntu1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.38-1ubuntu6",
"2.38-3ubuntu1"
]
}
],
"aliases": [],
"details": "A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.",
"id": "UBUNTU-CVE-2023-6246",
"modified": "2026-04-22T07:45:09Z",
"published": "2024-01-31T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-6246"
},
{
"type": "REPORT",
"url": "https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6620-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-6246"
}
],
"related": [
"USN-6620-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-6246"
]
}
ubuntu-cve-2023-6779
Vulnerability from osv_ubuntu
Published
2024-01-31 00:00
Modified
2026-04-22 07:45
Summary
Details
An off-by-one heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when these functions are called with a message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer.
Severity
7.5 (High)
8.2 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "glibc-source",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc-bin",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc-dev-bin",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc-devtools",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-amd64",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-dev-amd64",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-dev-i386",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-dev-s390",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-dev-x32",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-i386",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-s390",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-x32",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "locales",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "locales-all",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "nscd",
"binary_version": "2.39-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "glibc",
"purl": "pkg:deb/ubuntu/glibc@2.39-0ubuntu1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.39-0ubuntu1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.38-1ubuntu6",
"2.38-3ubuntu1"
]
}
],
"aliases": [],
"details": "An off-by-one heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when these functions are called with a message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer.",
"id": "UBUNTU-CVE-2023-6779",
"modified": "2026-04-22T07:45:10Z",
"published": "2024-01-31T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-6779"
},
{
"type": "REPORT",
"url": "https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6620-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-6779"
}
],
"related": [
"USN-6620-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-6779"
]
}
ubuntu-cve-2023-6780
Vulnerability from osv_ubuntu
Published
2024-01-31 00:00
Modified
2026-04-22 07:45
Summary
Details
An integer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when these functions are called with a very long message, leading to an incorrect calculation of the buffer size to store the message, resulting in undefined behavior. This issue affects glibc 2.37 and newer.
Severity
5.3 (Medium)
5.3 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "glibc-source",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc-bin",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc-dev-bin",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc-devtools",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-amd64",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-dev-amd64",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-dev-i386",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-dev-s390",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-dev-x32",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-i386",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-s390",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "libc6-x32",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "locales",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "locales-all",
"binary_version": "2.39-0ubuntu1"
},
{
"binary_name": "nscd",
"binary_version": "2.39-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "glibc",
"purl": "pkg:deb/ubuntu/glibc@2.39-0ubuntu1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.39-0ubuntu1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.38-1ubuntu6",
"2.38-3ubuntu1"
]
}
],
"aliases": [],
"details": "An integer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when these functions are called with a very long message, leading to an incorrect calculation of the buffer size to store the message, resulting in undefined behavior. This issue affects glibc 2.37 and newer.",
"id": "UBUNTU-CVE-2023-6780",
"modified": "2026-04-22T07:45:10Z",
"published": "2024-01-31T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-6780"
},
{
"type": "REPORT",
"url": "https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6620-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-6780"
}
],
"related": [
"USN-6620-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-6780"
]
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
| 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.
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