PT-2021-4765 · Libcaca+6 · Libcaca+6

Nigelxo · Published 2021-04-12 · Updated 2025-07-28 · CVE-2021-30499

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 libcaca (affected versions not specified)

Description The issue is related to a buffer overflow in the export.c file, specifically in the export troff function of the libcaca graphic library, which is used for converting images to ASCII art. This buffer overflow can lead to memory corruption. The exploitation of this issue may allow a remote attacker to cause memory damage.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-787

Related Identifiers

BDU:2021-05484

CVE-2021-30499

DLA-3784-1

DLA-4257-1

MGASA-2021-0496

OPENSUSE-SU-2022:0769-1

OPENSUSE-SU-2022_0769-1

OPENSUSE-SU-2024:12537-1

ROSA-SA-2025-2554

SUSE-SU-2022:0754-1

SUSE-SU-2022:0769-1

SUSE-SU-2022:0820-1

SUSE-SU-2022:14909-1

SUSE-SU-2022_14909-1

USN-5119-1

Affected Products

Astra Linux

Debian

Linuxmint

Red Os

Suse

Ubuntu

Libcaca

References · 48

• 🔥 https://github.com/cacalabs/libcaca/issues/54 · Exploit
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2022-0819SE17 · Vendor Advisory
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-30499 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:14909-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-30499 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-30499 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:0769-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30499 · Security Note
• https://advisories.mageia.org/MGASA-2021-0496.html · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2022:0769-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5119-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2022-0926SE47 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4257-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:0820-1 · Vendor Advisory