CVE-2023-6779

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2023-6779
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6779.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-6779
Downstream
AZL (1)
BELL (1)
CGA (2)
DEBIAN (1)
MGASA (1)
UBUNTU (1)
Related
Published
2024-01-31T14:07:41Z
Modified
2026-10-24T10:34:46Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
Summary
Glibc: off-by-one heap-based buffer overflow in __vsyslog_internal()
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.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-122"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6779.json"
}
References

Affected packages

Git / github.com/bminor/glibc

Affected ranges

Type
GIT
Repo
https://github.com/bminor/glibc
Events
Introduced
a704fd9a133bfb10510e18702f48a6a9c88dbbd5
Fixed
ef321e23c20eebc6d6fb4044425c00e6df27b05f
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "2.37"
                },
                {
                    "fixed": "2.39"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

glibc-2.*
glibc-2.37
glibc-2.37.9000
glibc-2.38
glibc-2.38.9000

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6779.json"

Git / sourceware.org/git/glibc.git

Affected ranges

Type
GIT
Repo
https://sourceware.org/git/glibc.git
Events
Introduced
a704fd9a133bfb10510e18702f48a6a9c88dbbd5
Fixed
ef321e23c20eebc6d6fb4044425c00e6df27b05f
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "2.37"
                },
                {
                    "fixed": "2.39"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

glibc-2.*
glibc-2.37
glibc-2.37.9000
glibc-2.38
glibc-2.38.9000

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6779.json"