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CVE-2011-2939 · cross-distro fix matrix

CVE-2011-2939: Off-by-one error in the decode_xs function in Unicode/Unicode.xs in the Encode module before 2.44, as used in Perl before 5.15.6, might allow context-dependent attackers to cause a denial of service (memory corruption) via a crafted Unicode string, which triggers a heap-based buffer overflow.

Affects 3 Linux releases across 6 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2011-2939 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • libencode-perl→ fixed in2.44-1urgency: low
    sudo apt-get install --only-upgrade -y libencode-perl
  • perl→ fixed in5.12.4-4urgency: low
    sudo apt-get install --only-upgrade -y perl

Debian bookworm

Source: Debian Security Tracker

  • libencode-perl→ fixed in2.44-1urgency: low
    sudo apt-get install --only-upgrade -y libencode-perl
  • perl→ fixed in5.12.4-4urgency: low
    sudo apt-get install --only-upgrade -y perl

Debian trixie

Source: Debian Security Tracker

  • libencode-perl→ fixed in2.44-1urgency: low
    sudo apt-get install --only-upgrade -y libencode-perl
  • perl→ fixed in5.12.4-4urgency: low
    sudo apt-get install --only-upgrade -y perl
Are YOU affected by CVE-2011-2939?

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