CVE-2023-6780

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Source
https://cve.org/CVERecord?id=CVE-2023-6780
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6780.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-6780
Downstream
Related
Published
2024-01-31T14:15:48.917Z
Modified
2026-04-16T00:06:31.910454064Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

An integer overflow was found in the _vsysloginternal 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.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpe": "cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "38"
                }
            ]
        },
        {
            "cpe": "cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "39"
                }
            ]
        }
    ]
}
References

Affected packages

Git / sourceware.org/git/glibc.git

Affected ranges

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

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-2023-6780.json"