tls: wait for pending async decryptions if tls_strp_msg_hold fails
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.4%
exploitation probability
0.4%top 64% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
tls: wait for pending async decryptions if tls_strp_msg_hold fails
Async decryption calls tls_strp_msg_hold to create a clone of the
input skb to hold references to the memory it uses. If we fail to
allocate that clone, proceeding with async decryption can lead to
various issues (UAF on the skb, writing into userspace memory after
the recv() call has returned).
In this case, wait for all pending decryption requests.
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/39dec4ea3daf77f684308576baf483b55ca7f160https://git.kernel.org/stable/c/4fc109d0ab196bd943b7451276690fb6bb48c2e0https://git.kernel.org/stable/c/9f83fd0c179e0f458e824e417f9d5ad53443f685https://git.kernel.org/stable/c/b8a6ff84abbcbbc445463de58704686011edc8e1https://git.kernel.org/stable/c/c61d4368197d65c4809d9271f3b85325a600586a