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CVE-2021-30184 · cross-distro fix matrix

CVE-2021-30184: GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN (Portable Game Notation) data. This is related to a buffer overflow in the use of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplay functions in frontend/cmd.cc.

Affects 8 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-30184 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • gnuchess→ fixed in6.2.7-1+deb11u1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y gnuchess

Debian bookworm

Source: Debian Security Tracker

  • gnuchess→ fixed in6.2.7-1+deb12u1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y gnuchess

Debian trixie

Source: Debian Security Tracker

  • gnuchess→ fixed in6.2.9-0.1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y gnuchess

Alpine v3.20

Source: Alpine secdb

  • gnuchess→ fixed in6.2.9-r0
    apk update && apk add --upgrade gnuchess

Alpine v3.21

Source: Alpine secdb

  • gnuchess→ fixed in6.2.9-r0
    apk update && apk add --upgrade gnuchess

Alpine edge

Source: Alpine secdb

  • gnuchess→ fixed in6.2.9-r0
    apk update && apk add --upgrade gnuchess

Alpine v3.18

Source: Alpine secdb

  • gnuchess→ fixed in6.2.9-r0
    apk update && apk add --upgrade gnuchess

Alpine v3.19

Source: Alpine secdb

  • gnuchess→ fixed in6.2.9-r0
    apk update && apk add --upgrade gnuchess
Are YOU affected by CVE-2021-30184?

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