openvswitch: validate MPLS set/set_masked payload length
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
openvswitch: validate MPLS set/set_masked payload length
validate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for
SET/SET_MASKED actions. In action handling, OVS expects fixed-size
MPLS key data (struct ovs_key_mpls).
Use the already normalized key_len (masked case included) and reject
non-matching MPLS action key sizes.
Reject invalid MPLS action payload lengths early.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438ehttps://git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61https://git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6https://git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6fhttps://git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586ahttps://git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997https://git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036https://git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700