DEBIAN-CVE-2026-93018
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-93018
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-93018.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-93018
- Upstream
- Published
- 2026-09-18T14:19:04Z
- Modified
- 2026-09-19T05:00:12Z
- Summary
- [none]
- Details
-
Imager versions before 1.036 for Perl disclose uninitialised heap memory reading a paletted image with pixel indexes past its colour map in i_gpix_p and i_glin_p. The palette is allocated uninitialised, and only the entries a reader adds count as populated. The TGA reader stores pixel indexes without checking them against the colour map. i_gpix_p() rejects only an index greater than the count, so an index equal to it reads the first unpopulated entry, and getpixel() returns it. i_glin_p() skips any index at or beyond the count without writing that pixel to the caller's buffer. The palette-to-RGB conversion reads each row through an uninitialised buffer, so those pixels of the converted image hold prior heap contents. Reading an attacker-supplied image through Imager->read() and then fetching its pixels or converting it to RGB discloses process heap memory.
- References
Affected packages
Debian:12 / libimager-perl
Package
- Name
- libimager-perl
- Purl
- pkg:deb/debian/libimager-perl?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / libimager-perl
Package
- Name
- libimager-perl
- Purl
- pkg:deb/debian/libimager-perl?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:14 / libimager-perl
Package
- Name
- libimager-perl
- Purl
- pkg:deb/debian/libimager-perl?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected