CVE-2025-6199
This logic error results in uninitialized sections of the buffer being included in the output, potentially leaking arbitrary memory contents in the processed image.
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 3.3 LOWCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- EPSS
- 0.19% probability · 8th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- gnome/gdkpixbuf
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2025-6199Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2373147Issue Tracking, Third Party Advisory
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/257
- https://lists.debian.org/debian-lts-announce/2025/06/msg00023.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.