CVE-2021-3905

NameCVE-2021-3905
DescriptionA memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing. An attacker could use this flaw to potentially exhaust available memory by keeping sending packet fragments.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openvswitch (PTS)jessie, jessie (lts)2.3.0+git20140819-3+deb8u1fixed
stretch (security), stretch (lts), stretch2.6.10-0+deb9u1fixed
buster (security), buster, buster (lts)2.10.7+ds1-0+deb10u5fixed
bullseye (security), bullseye2.15.0+ds1-2+deb11u5fixed
bookworm (security), bookworm3.1.0-2+deb12u1fixed
sid, trixie3.4.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openvswitchsource(unstable)(not affected)

Notes

- openvswitch <not-affected> (Vulnerable code introduced later)
https://github.com/openvswitch/ovs-issues/issues/226
Introduced by: https://github.com/openvswitch/ovs/commit/640d4db788eda96bb904abcfc7de2327107bafe1 (v2.16.0)
Fixed by: https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349

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