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CVE-2020-14347 · cross-distro fix matrix

CVE-2020-14347: A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable.

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-14347 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • xorg-server→ fixed in2:1.20.9-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y xorg-server

Debian bookworm

Source: Debian Security Tracker

  • xorg-server→ fixed in2:1.20.9-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y xorg-server

Debian trixie

Source: Debian Security Tracker

  • xorg-server→ fixed in2:1.20.9-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y xorg-server

Alpine v3.20

Source: Alpine secdb

  • xorg-server→ fixed in1.20.8-r4
    apk update && apk add --upgrade xorg-server

Alpine v3.21

Source: Alpine secdb

  • xorg-server→ fixed in1.20.8-r4
    apk update && apk add --upgrade xorg-server

Alpine edge

Source: Alpine secdb

  • xorg-server→ fixed in1.20.8-r4
    apk update && apk add --upgrade xorg-server

Alpine v3.18

Source: Alpine secdb

  • xorg-server→ fixed in1.20.8-r4
    apk update && apk add --upgrade xorg-server

Alpine v3.19

Source: Alpine secdb

  • xorg-server→ fixed in1.20.8-r4
    apk update && apk add --upgrade xorg-server
Are YOU affected by CVE-2020-14347?

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