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CVE-2021-29957 · cross-distro fix matrix

CVE-2021-29957: If a MIME encoded email contains an OpenPGP inline signed or encrypted message part, but also contains an additional unprotected part, Thunderbird did not indicate that only parts of the message are protected. This vulnerability affects Thunderbird < 78.10.2.

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-29957 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • thunderbird→ fixed in1:78.10.2-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y thunderbird

Debian bookworm

Source: Debian Security Tracker

  • thunderbird→ fixed in1:78.10.2-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y thunderbird

Debian trixie

Source: Debian Security Tracker

  • thunderbird→ fixed in1:78.10.2-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y thunderbird

Alpine v3.20

Source: Alpine secdb

  • thunderbird→ fixed in91.3.2-r0
    apk update && apk add --upgrade thunderbird

Alpine v3.21

Source: Alpine secdb

  • thunderbird→ fixed in91.3.2-r0
    apk update && apk add --upgrade thunderbird

Alpine edge

Source: Alpine secdb

  • thunderbird→ fixed in91.3.2-r0
    apk update && apk add --upgrade thunderbird

Alpine v3.18

Source: Alpine secdb

  • thunderbird→ fixed in91.3.2-r0
    apk update && apk add --upgrade thunderbird

Alpine v3.19

Source: Alpine secdb

  • thunderbird→ fixed in91.3.2-r0
    apk update && apk add --upgrade thunderbird
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