CVE-2021-35942 @ mufasa

"CVE-2021-35942"
"glibc-2.17-326.el7_9.99.tuxcare.els4"
"glibc-common-2.17-326.el7_9.99.tuxcare.els4"
"glibc-devel-2.17-326.el7_9.99.tuxcare.els4"
"glibc-headers-2.17-326.el7_9.99.tuxcare.els4"
"glibc-static-2.17-326.el7_9.99.tuxcare.els4"
"Am I vulnerable?"

Status

not_applicable

Priority

9.1

Match score

4.0

Risk

InfoLeak MemCorrupt DoS Remote priv:user

CVSS

9.1 CRITICAL

Reason

cpe: glibc; pkgs: glibc, glibc-common, glibc-devel, glibc-headers, glibc-static; version: in-range: glibc-2.17-326.el7_9.99.tuxcare.els4, glibc-common-2.17-326.el7_9.99.tuxcare.els4, glibc-devel-2.17-326.el7_9.99.tuxcare.els4, glibc-headers-2.17-326.el7_9.99.tuxcare.els4, glibc-static-2.17-326.el7_9.99.tuxcare.els4; risk:info_disclosure

Created

2026-10-20T18:18:15Z

Updated

2026-10-20T19:09:16Z

Closed

2026-10-20T18:31:42Z

Package interrogation (copy)

Run on the host — click to copy a command. RPM

Package	Commands
glibc-2.17-326.el7_9.99.tuxcare.els4
glibc-common-2.17-326.el7_9.99.tuxcare.els4
glibc-devel-2.17-326.el7_9.99.tuxcare.els4
glibc-headers-2.17-326.el7_9.99.tuxcare.els4
glibc-static-2.17-326.el7_9.99.tuxcare.els4

Inventory lookup

Search package inventory across systems, then return here. Create a ticket on systems the matcher missed.

Suggestions: glibc · glibc-common · glibc-devel · glibc-headers · glibc-static

System	Matches	Ticket for CVE-2021-35942
morris	glibc-devel 2.17	not_applicable open
mufasa	glibc-devel 2.17	not_applicable open

Related CVE (same fix)

This CVE is subordinated to primary CVE-2021-3999 — same product as CVE-2021-3999

Host OS / kernel

CloudLinux release 7.9 (Boris Yegorov) (7.9) · cloudlinux

Arch

x86_64

kernel_release

uname -r → 3.10.0-962.3.2.lve1.5.89.el7.x86_64

kernel_version

uname -v → #1 SMP Thu Jul 9 15:55:31 UTC 2026

For Linux kernel CVEs, kernel_version (Debian packaging / build string) often decides fixed vs not; kernel_release is used for upstream NVD range compares.

Same CVE on other hosts

Open the ticket for this CVE on another system.

System	Status	Priority	Updated
morris	not_applicable	9.1	2026-10-20T19:09:16Z	Open

Description

The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations.

Determination

Related to primary CVE-2021-3999: same product as CVE-2021-3999

Update status

Add note only

Mitigation log

2026-10-20T18:31:42Z — not_applicable

Related to primary CVE-2021-3999: same product as CVE-2021-3999

References

NVD: CVE-2021-35942