CVE-2021-20197

Updated: 2024-11-24 03:56:24.311803

Description:

There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x LOW 3.3000000000000003
CVSS Version 3.x MEDIUM 6.3

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

CentOS 6 ELS binutils 2.20 6.3 MEDIUM Ignored 2021-12-16 15:55:57
CentOS 7 ELS binutils 2.27 6.3 MEDIUM Ignored 2023-09-19 09:30:36
CentOS 8.4 ELS binutils 2.30-93 6.3 MEDIUM Released CLSA-2022:1645466518 2022-02-21 17:54:42
CentOS 8.5 ELS binutils 2.30-108 6.3 MEDIUM Not Vulnerable 2022-02-15 08:39:39
CloudLinux 6 ELS binutils 2.20 6.3 MEDIUM Ignored 2021-12-16 15:55:57
Oracle Linux 6 ELS binutils 2.20 6.3 MEDIUM Ignored 2021-12-16 15:55:57
Ubuntu 16.04 ELS binutils 2.26 6.3 MEDIUM Ignored 2021-12-09 07:57:03
Ubuntu 18.04 ELS binutils 2.30-21 6.3 MEDIUM Ignored 2023-03-02 04:04:23