ipvs: ensure inner headers in ICMP errors are in headroom
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.7%
exploitation probability
0.7%top 47% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
ipvs: ensure inner headers in ICMP errors are in headroom
Sashiko points out that after stripping the outer headers
with pskb_pull() we should ensure the inner IP headers
in ICMP errors from tunnels are present in the skb headroom
for functions like ipv4_update_pmtu(), icmp_send() and
IP_VS_DBG().
Also, add more checks for the length of the inner headers.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/19657b3a17b774ae4e2f2635b5ae8638c9344a40https://git.kernel.org/stable/c/3f7a535ff0fa627a0132803e4c2f903ceffcbc1chttps://git.kernel.org/stable/c/8f48cfe657409fb5c7ba0521b14da6d47546d9cfhttps://git.kernel.org/stable/c/92185d6f7819bc558939ae83de7b1abe90e3b5c2https://git.kernel.org/stable/c/9bc9b95aee2b2e3f1301a16a67ee504960402875https://git.kernel.org/stable/c/a735f9964a3d9ed97daf9b08507f8b5bcafe6326https://git.kernel.org/stable/c/dac813101914c21219ac221a60a31a11bc90e7echttps://git.kernel.org/stable/c/dd22f74a09e25ca298ced0a3763ef353242cb78d