vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu()
28Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 9.8epss 0.5%
probabilidade de exploração
0.5%top 59% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved:
vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu()
skb_tunnel_check_pmtu() can change skb->head.
Reusing old_iph afer skb_tunnel_check_pmtu() can cause an UAF.
Use instead ip_hdr(skb) as done in drivers/net/bareudp.c
and drivers/net/geneve.c.
Found by Sashiko.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
Linux · LinuxReferências
https://git.kernel.org/stable/c/5303925e360527243b46a440a04667826bbc72b7https://git.kernel.org/stable/c/609e63312c29aad18026a1d3222e123d4b6b0febhttps://git.kernel.org/stable/c/6b8bfce9d2f774d2c2243e0248e03efb99bba6c0https://git.kernel.org/stable/c/7d9ef0cb271555d8cf39fefe6c981e1493b25ecfhttps://git.kernel.org/stable/c/8d435d68d71fb875876b722f4136caf74f2f48bdhttps://git.kernel.org/stable/c/9257f56ac47ef1976bcd056cf986a9988eeec67ahttps://git.kernel.org/stable/c/a493efd4336cf19122ae0e4cbb3d31b32d70deeahttps://git.kernel.org/stable/c/dc3bfa050f873371e745bdf478b1f5b738e5733d