PT-2021-3121 · Djvulibre+5 · Djvulibre+5

1Vanchen + 1 · Published 2021-04-30 · Updated 2025-10-14 · CVE-2021-3500

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

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

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

Description A flaw was found in the function DJVU::DjVuDocument::get djvu file() that can cause a stack overflow via a crafted djvu file, potentially leading to an application crash and other consequences. The vulnerability may allow a remote attacker to execute arbitrary code.

Recommendations For versions 3.5.28 and earlier, consider disabling the DJVU::DjVuDocument::get djvu file() function as a temporary workaround until a patch is available. Restrict access to crafted djvu files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

ALT-PU-2025-12685

ALT-PU-2025-12687

BDU:2021-02744

CVE-2021-3500

DLA-2667-1

DSA-5032-1

MGASA-2021-0247

OESA-2021-1255

OPENSUSE-SU-2021:0877-1

OPENSUSE-SU-2021:1948-1

OPENSUSE-SU-2021_0877-1

OPENSUSE-SU-2021_1948-1

OPENSUSE-SU-2024:10719-1

ROSA-SA-2024-2428

SUSE-SU-2021:14738-1

SUSE-SU-2021:1813-1

SUSE-SU-2021:1857-1

SUSE-SU-2021:1948-1

SUSE-SU-2021_14738-1

SUSE-SU-2021_1813-1

SUSE-SU-2021_1857-1

SUSE-SU-2021_1948-1

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-2021:14738-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2022-0819SE17 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-3500 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-3500 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:10719-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-3500 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:1948-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-32493 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-3500 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2022-0926SE47 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32491 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-3500 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20211008SE16 · Vendor Advisory