What’s Vulnerable › Vulnerabilities
CVE-2021-44648
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.9% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2022-01-12 · updated 2026-06-17
- Weakness: CWE-787
Description
GNOME gdk-pixbuf 2.42.6 is vulnerable to a heap-buffer overflow vulnerability when decoding the lzw compressed stream of image data in GIF files with lzw minimum code size equals to 12.
Affected products
- Debian Linux: 11.0
- Fedoraproject Fedora: 34, 35
- GNOME Gdkpixbuf: 2.42.6
References
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/136
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEVTOGIJITK2N5AOOLKKMDIICZDQE6CH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEKBMOO52RXONWKB6ZKKHTVPLF6WC3KF/
- https://sahildhar.github.io/blogpost/GdkPixbuf-Heap-Buffer-Overflow-in-lzw_decoder_new/
- https://www.debian.org/security/2022/dsa-5228
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/136
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEVTOGIJITK2N5AOOLKKMDIICZDQE6CH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEKBMOO52RXONWKB6ZKKHTVPLF6WC3KF/
- https://sahildhar.github.io/blogpost/GdkPixbuf-Heap-Buffer-Overflow-in-lzw_decoder_new/
- https://www.debian.org/security/2022/dsa-5228
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