CVE-2009-0749 · cross-distro fix matrix

CVE-2009-0749: Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which tri

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2009-0749 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

optipng→ fixed in0.6.2.1-1urgency: low

sudo apt-get install --only-upgrade -y optipng

Debian bookworm

Source: Debian Security Tracker

optipng→ fixed in0.6.2.1-1urgency: low

sudo apt-get install --only-upgrade -y optipng

Debian trixie

Source: Debian Security Tracker

optipng→ fixed in0.6.2.1-1urgency: low

sudo apt-get install --only-upgrade -y optipng

Are YOU affected by CVE-2009-0749?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

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