CVE-2023-4911
glibc - security update
7.8
HIGH
CVSS 3.1
⚠ KEVEPSS 62.2%
Description
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.
How to fix CVE-2023-4911
To remediate CVE-2023-4911, upgrade the affected package to a fixed version below.
- —upgrade to 2.31-13+deb11u7 or later
- —upgrade to 2.31-13+deb11u7 or later
Is CVE-2023-4911 being exploited?
Yes — CVE-2023-4911 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (2)
- from 0, < 2.31-13+deb11u7
- from 0, < 2.31-13+deb11u7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |