PT-2021-3122 · Djvulibre+5 · Djvulibre+5

Published 2021-05-11 · Updated 2025-10-14 · CVE-2021-32492

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions djvulibre versions 3.5.28 and earlier

Description A flaw was found in the djvulibre library, specifically in the DJVU::DataPool::has data() function, which can lead to an out of bounds read when processing a crafted djvu file. This may cause an application crash and potentially allow a remote attacker to gain unauthorized access to protected information.

Recommendations For djvulibre versions 3.5.28 and earlier, consider avoiding the use of crafted djvu files until a patch is available. As a temporary workaround, restrict access to the DJVU::DataPool::has data() function to minimize the risk of exploitation.

Exploit

Fix

Buffer Overflow

Out of bounds Read

Weakness Enumeration

CWE-119

CWE-125

Related Identifiers

ALT-PU-2025-12685

ALT-PU-2025-12687

BDU:2021-02745

CVE-2021-32492

DLA-2667-1

DSA-5032-1

MGASA-2021-0247

OESA-2021-1255

OPENSUSE-SU-2021:0759-1

OPENSUSE-SU-2021:1641-1

OPENSUSE-SU-2021_0759-1

OPENSUSE-SU-2021_1641-1

OPENSUSE-SU-2024:10719-1

SUSE-SU-2021:14728-1

SUSE-SU-2021:1641-1

SUSE-SU-2021:1645-1

SUSE-SU-2021:1649-1

SUSE-SU-2021_14728-1

USN-4957-1

USN-4957-2

Affected Products

Alt Linux

Astra Linux

Linuxmint

Suse

Ubuntu

Djvulibre

References · 66

• 🔥 https://github.com/TeamSeri0us/pocs/blob/master/djvulibre/DJVU__filter_fv%40IW44EncodeCodec.cpp_499-43___SEGV_UNKNOW.md · Exploit
• https://ubuntu.com/security/CVE-2021-3500 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:1645-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0759-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2022-0819SE17 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10719-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-32492 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3500 · Security Note
• https://ubuntu.com/security/CVE-2021-32493 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-32492 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-32492 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2021:1641-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32491 · Security Note
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2022-0926SE47 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20211008SE16 · Vendor Advisory