cifs: parse_dfs_referrals: prevent oob on malformed input
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.4%
exploitation probability
0.4%top 69% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
cifs: parse_dfs_referrals: prevent oob on malformed input
Malicious SMB server can send invalid reply to FSCTL_DFS_GET_REFERRALS
- reply smaller than sizeof(struct get_dfs_referral_rsp)
- reply with number of referrals smaller than NumberOfReferrals in the
header
Processing of such replies will cause oob.
Return -EINVAL error on such replies to prevent oob-s.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/15c73964da9df994302f579ed14ee5fdbce7a332https://git.kernel.org/stable/c/6447b0e355562a1ff748c4a2ffb89aae7e84d2c9https://git.kernel.org/stable/c/8bc4a8d39bac23d8b044fd3e2dbfd965f1d9b058https://git.kernel.org/stable/c/bb0f2e66e1ac043a5b238f5bcab4f26f3c317039https://git.kernel.org/stable/c/cfacc7441f760e4a73cc71b6ff1635261d534657