CVE-2025-6199
Gdk-pixbuf: uninitialized memory disclosure in gdkpixbuf gif lzw decoder
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.43.2
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
A flaw was found in the GIF parser of GdkPixbuf’s LZW decoder. When an invalid symbol is encountered during decompression, the decoder sets the reported output size to the full buffer length rather than the actual number of written bytes. This logic error results in uninitialized sections of the buffer being included in the output, potentially leaking arbitrary memory contents in the processed image.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- gdk-pixbuf
fixed in 2.43.2
- gdk-pixbuf2
Version range not reported
- glycin-loaders
Version range not reported
- loupe
Version range not reported
- snapshot
Version range not reported
- gdk-pixbuf2
Version range not reported
- gdk-pixbuf2
Version range not reported
- gdk-pixbuf2
Version range not reported
- gdk-pixbuf2
Version range not reported
- librsvg2
Version range not reported