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CVE-2019-20795 · cross-distro fix matrix

CVE-2019-20795: iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library c

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-20795 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • iproute2→ fixed in5.2.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y iproute2

Debian bookworm

Source: Debian Security Tracker

  • iproute2→ fixed in5.2.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y iproute2

Debian trixie

Source: Debian Security Tracker

  • iproute2→ fixed in5.2.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y iproute2

Alpine v3.20

Source: Alpine secdb

  • iproute2→ fixed in5.1.0-r0
    apk update && apk add --upgrade iproute2

Alpine v3.21

Source: Alpine secdb

  • iproute2→ fixed in5.1.0-r0
    apk update && apk add --upgrade iproute2

Alpine edge

Source: Alpine secdb

  • iproute2→ fixed in5.1.0-r0
    apk update && apk add --upgrade iproute2

Alpine v3.18

Source: Alpine secdb

  • iproute2→ fixed in5.1.0-r0
    apk update && apk add --upgrade iproute2

Alpine v3.19

Source: Alpine secdb

  • iproute2→ fixed in5.1.0-r0
    apk update && apk add --upgrade iproute2
Are YOU affected by CVE-2019-20795?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

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