netfilter: flowtable: validate pppoe header
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.3%
exploitation probability
0.3%top 74% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: validate pppoe header
Ensure there is sufficient room to access the protocol field of the
PPPoe header. Validate it once before the flowtable lookup, then use a
helper function to access protocol field.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/87b3593bed1868b2d9fe096c01bcdf0ea86cbebfhttps://git.kernel.org/stable/c/8bf7c76a2a207ca2b4cfda0a279192adf27678d7https://git.kernel.org/stable/c/a2471d271042ea18e8a6babc132a8716bb2f08b9https://git.kernel.org/stable/c/cf366ee3bc1b7d1c76a882640ba3b3f8f1039163https://git.kernel.org/stable/c/d06977b9a4109f8738bb276125eb6a0b772bc433https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/