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CVE-2020-28493 · cross-distro fix matrix

CVE-2020-28493: This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-28493 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • jinja2→ fixed in2.11.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y jinja2

Debian bookworm

Source: Debian Security Tracker

  • jinja2→ fixed in2.11.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y jinja2

Debian trixie

Source: Debian Security Tracker

  • jinja2→ fixed in2.11.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y jinja2

Alpine v3.20

Source: Alpine secdb

  • py3-jinja2→ fixed in1.11.3-r0
    apk update && apk add --upgrade py3-jinja2

Alpine v3.21

Source: Alpine secdb

  • py3-jinja2→ fixed in1.11.3-r0
    apk update && apk add --upgrade py3-jinja2

Alpine edge

Source: Alpine secdb

  • py3-jinja2→ fixed in1.11.3-r0
    apk update && apk add --upgrade py3-jinja2

Alpine v3.18

Source: Alpine secdb

  • py3-jinja2→ fixed in1.11.3-r0
    apk update && apk add --upgrade py3-jinja2

Alpine v3.19

Source: Alpine secdb

  • py3-jinja2→ fixed in1.11.3-r0
    apk update && apk add --upgrade py3-jinja2
Are YOU affected by CVE-2020-28493?

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