Description
In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() In some cases, iptunnel_pmtud_check_icmp() can be called while skb transport header is not set. This triggers an out-of-bound access, because (typeof(skb->transport_header))~0U is 65535. Access the icmp header based on IPv4 network header, after making sure icmp->type is present in skb linear part. Note that iptunnel_pmtud_check_icmpv6()) is fine.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < 5a92cb45e34749865d03daf8d3500f77b5f6644caffected4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < c7b7ec3e69e673c0d6b57f74d21da50c485c598eaffected4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < 7f4f7efe7f30edd29c4988de01728bf2398217e4affected4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < e917d0c69f01af2bb4fbea2b66d560a53b3ac7ecaffected4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < a096b6e34f602950af9a2b0856cd93a5f4c276d7affected4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < 43368636c663cff6e59dde93cf4b8e43ac28eb93affected4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < cb549df9ce4ee15c9d5b19ddab12cf2128e4313caffected4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < 509323077ef79a26ba0c60bb556e45c12c398b2daffected
Linux Linux
Default version status: affected
5.9affected0 to < 5.9unaffected5.10.259 to ≤ 5.10.*unaffected5.15.210 to ≤ 5.15.*unaffected6.1.176 to ≤ 6.1.*unaffected6.6.143 to ≤ 6.6.*unaffected6.12.93 to ≤ 6.12.*unaffected6.18.35 to ≤ 6.18.*unaffected7.0.12 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/5a92cb45e34749865d03daf8d3500f77b5f6644c ↗
- https://git.kernel.org/stable/c/c7b7ec3e69e673c0d6b57f74d21da50c485c598e ↗
- https://git.kernel.org/stable/c/7f4f7efe7f30edd29c4988de01728bf2398217e4 ↗
- https://git.kernel.org/stable/c/e917d0c69f01af2bb4fbea2b66d560a53b3ac7ec ↗
- https://git.kernel.org/stable/c/a096b6e34f602950af9a2b0856cd93a5f4c276d7 ↗
- https://git.kernel.org/stable/c/43368636c663cff6e59dde93cf4b8e43ac28eb93 ↗
- https://git.kernel.org/stable/c/cb549df9ce4ee15c9d5b19ddab12cf2128e4313c ↗
- https://git.kernel.org/stable/c/509323077ef79a26ba0c60bb556e45c12c398b2d ↗