What’s Vulnerable › Vulnerabilities

CVE-2022-1507: chafa: NULL Pointer Dereference in function gif_internal_decode_frame at libnsgif.c:599 allows attackers to cause a denial of service (crash) via a crafted input file. in hpjansson/chafa

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-04-27 · updated 2026-06-17
• Weakness: CWE-476

Description

chafa: NULL Pointer Dereference in function gif_internal_decode_frame at libnsgif.c:599 allows attackers to cause a denial of service (crash) via a crafted input file. in GitHub repository hpjansson/chafa prior to 1.10.2. chafa: NULL Pointer Dereference in function gif_internal_decode_frame at libnsgif.c:599 allows attackers to cause a denial of service (crash) via a crafted input file.

Affected products

• hpjansson/chafa: before 1.10.2 — fixed in 1.10.2
• Fedoraproject Fedora: 34, 35, 36

How to fix

Upgrade to a fixed version: hpjansson/chafa 1.10.2. Check the vendor advisory for mitigations.

References

• https://github.com/hpjansson/chafa/commit/e4b777c7b7c144cd16a0ea96108267b1004fe6c9
• https://huntr.dev/bounties/104d8c5d-cac5-4baa-9ac9-291ea0bcab95
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3PLHKTQYK6AO3M5NAVM3CDVQTZZS6MCO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DIOAZPITFL2Y7Y6KHCZ4OIK7P7KWFN22/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L54UEP5S254VP5FZWGFPHLTPMFJVOGYT/
• https://github.com/hpjansson/chafa/commit/e4b777c7b7c144cd16a0ea96108267b1004fe6c9
• https://huntr.dev/bounties/104d8c5d-cac5-4baa-9ac9-291ea0bcab95
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3PLHKTQYK6AO3M5NAVM3CDVQTZZS6MCO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DIOAZPITFL2Y7Y6KHCZ4OIK7P7KWFN22/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L54UEP5S254VP5FZWGFPHLTPMFJVOGYT/

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