PT-2021-7534 · Gnu+10 · Gnu C Library+10

Published 2021-01-27 · Updated 2024-06-15 · CVE-2021-3326

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions GNU C Library (aka glibc or libc6) versions 2.32 and earlier

Description The iconv function in the GNU C Library, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

Recommendations For GNU C Library (aka glibc or libc6) versions 2.32 and earlier, consider updating to a newer version to mitigate the risk of denial of service. As a temporary workaround, consider restricting the use of the iconv function when processing input sequences in the ISO-2022-JP-3 encoding until a patch is available.

Fix

DoS

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

ALSA-2021:1585

ALT-PU-2021-3034

BDU:2022-07362

CESA-2021_1585

CVE-2021-3326

DLA-3152-1

MGASA-2021-0150

OESA-2021-1045

OPENSUSE-SU-2021:0358-1

OPENSUSE-SU-2021_0358-1

OPENSUSE-SU-2024:10792-1

RHSA-2021:1585

RHSA-2021_1585

RLSA-2021:1585

SUSE-SU-2021:0608-1

SUSE-SU-2021:0653-1

SUSE-SU-2022:2886-1

SUSE-SU-2024:0759-1

USN-5310-1

USN-5699-1

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Gnu C Library

Linuxmint

Red Hat

Red Os

Rocky Linux

Suse

Ubuntu

References · 142

• https://ubuntu.com/security/CVE-2020-29562 · Vendor Advisory
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-3326 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:0653-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-1585.html · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2021:1585 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2021-1045 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-27618 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0303SE17MD · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-6096 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2021-0150.html · Security Note
• https://osv.dev/vulnerability/RLSA-2021:1585 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-25013 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-10228 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-3326 · Security Note