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CVE-2023-4911

Public on 2023-10-03
Modified on 2024-07-10
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.
Severity
Important severity
Important
CVSS v3 Base Score
8.2
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 1 glibc Not Affected
Amazon Linux 2 - Core glibc Not Affected
Amazon Linux 2023 glibc 2023-09-27 ALAS2023-2023-359 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.2 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H