cbcvebase.
CVE-2024-40931
published 2024-07-12

CVE-2024-40931: In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure snd_una is properly initialized on connect This is strictly related to commit…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.26%
17.0th percentile
In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure snd_una is properly initialized on connect This is strictly related to commit fb7a0d334894 ("mptcp: ensure snd_nxt is properly initialized on connect"). It turns out that syzkaller can trigger the retransmit after fallback and before processing any other incoming packet - so that snd_una is still left uninitialized. Address the issue explicitly initializing snd_una together with snd_nxt and write_seq.

Affected

21 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.99-1 (bookworm)linux 6.1.99-1 (bookworm)
debianlinux-6.1< linux 6.1.99-1 (bookworm)linux 6.1.99-1 (bookworm)
linuxlinux
linuxlinux>= 8fd738049ac3d67a937d36577763b47180aae1ad < 208cd22ef5e57f82d38ec11c1a1703f9401d6dde208cd22ef5e57f82d38ec11c1a1703f9401d6dde
linuxlinux>= 8fd738049ac3d67a937d36577763b47180aae1ad < 7b9c7fc8600b64a86e4b47b2d190bba3802677267b9c7fc8600b64a86e4b47b2d190bba380267726
linuxlinux>= 8fd738049ac3d67a937d36577763b47180aae1ad < f03c46eabb3a67bd2993e237ab5517f00a5f1813f03c46eabb3a67bd2993e237ab5517f00a5f1813
linuxlinux>= 8fd738049ac3d67a937d36577763b47180aae1ad < f1f0a46f8bb8890b90ab7194f0a0c8fe2a3fb57ff1f0a46f8bb8890b90ab7194f0a0c8fe2a3fb57f
linuxlinux>= 8fd738049ac3d67a937d36577763b47180aae1ad < ef473bf1dd7e8dd08bcc04b9e2d1bfed69a0a7ceef473bf1dd7e8dd08bcc04b9e2d1bfed69a0a7ce
linuxlinux>= 8fd738049ac3d67a937d36577763b47180aae1ad < 8031b58c3a9b1db3ef68b3bd749fbee2e1e1aaa38031b58c3a9b1db3ef68b3bd749fbee2e1e1aaa3
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.221-15.10.221-1
linuxlinux_kernel>= 0 < 6.1.99-16.1.99-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 5.15.0-121.1315.15.0-121.131
linuxlinux_kernel>= 0 < 6.8.0-44.446.8.0-44.44
linuxlinux_kernel>= 5.11 < 5.15.1625.15.162
linuxlinux_kernel>= 5.16 < 6.1.956.1.95
linuxlinux_kernel>= 5.9 < 5.10.2215.10.221
linuxlinux_kernel>= 6.2 < 6.6.356.6.35
linuxlinux_kernel>= 6.7 < 6.9.66.9.6

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_ubuntu6.3MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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