Vulnerability · Published Jun 17, 2025 · Assigned by redhat
CVE-2025-6199Gdk-pixbuf: uninitialized memory disclosure in gdkpixbuf gif lzw decoder
Low 3.3
In plain English
A low-severity information exposure in gdk-pixbuf. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | gdk-pixbuf | 2.42.10+dfsg-1+deb12u2 | DSA-5946-1 |
| Debian:12 | gdk-pixbuf | 2.42.10+dfsg-1+deb12u2 | DEBIAN-CVE-2025-6199 |
| Debian:13 | gdk-pixbuf | 2.42.12+dfsg-3 | DEBIAN-CVE-2025-6199 |
| Debian:14 | gdk-pixbuf | 2.42.12+dfsg-3 | DEBIAN-CVE-2025-6199 |
| Ubuntu:22.04:LTS | gdk-pixbuf | 2.42.8+dfsg-1ubuntu0.4 | USN-7662-1 |
| Ubuntu:22.04:LTS | gdk-pixbuf | 2.42.8+dfsg-1ubuntu0.4 | UBUNTU-CVE-2025-6199 |
| Ubuntu:24.04:LTS | gdk-pixbuf | 2.42.10+dfsg-3ubuntu3.2 | UBUNTU-CVE-2025-6199 |
| Ubuntu:24.04:LTS | gdk-pixbuf | 2.42.10+dfsg-3ubuntu3.2 | USN-7662-1 |
| Ubuntu:25.10 | gdk-pixbuf | 2.42.12+dfsg-4build1 | UBUNTU-CVE-2025-6199 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| gdk-pixbuf | 0 – before 2.43.2 | |
| Red Hat | Red Hat Enterprise Linux 10 | see references |
| Red Hat | Red Hat Enterprise Linux 10 | see references |
| Red Hat | Red Hat Enterprise Linux 10 | see references |
| Red Hat | Red Hat Enterprise Linux 10 | see references |
| Red Hat | Red Hat Enterprise Linux 6 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
References
- https://access.redhat.com/security/cve/CVE-2025-6199 vdb-entry, x_refsource_REDHAT
- RHBZ#2373147 issue-tracking, x_refsource_REDHAT
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/257
- https://lists.debian.org/debian-lts-announce/2025/06/msg00023.html