🛡️ CVE-2021-46822 on Debian — libjpeg-turbo

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

The PPM reader in libjpeg-turbo through 2.0.90 mishandles use of tjLoadImage for loading a 16-bit binary PPM file into a grayscale buffer and loading a 16-bit binary PGM file into an RGB buffer. This is related to a heap-based buffer overflow in the get_word_rgb_row function in rdppm.c.

Distribution advisory

This page covers CVE-2021-46822 as tracked by Debian, for the package libjpeg-turbo. The fix is available in version 1:2.1.1-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

DEBIAN-CVE-2021-46822 is recorded against 1 package.

libjpeg-turbo (fixed in 1:2.1.1-1)

Timeline and source

Published on 18 June 2022 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2021-46822 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Debian 11 (Root.io)Ubuntu

Details

Severity Unknown

CVSS Score N/A

CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2022-06-18

Updated 2026-08-12

Modified 2026-08-04

Fix URL N/A

Affected Packages

Software	From version	Fixed in
libjpeg-turbo	—	1:2.1.1-1

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2021-46822

🔗 NVD 🔗 Mitre

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