cbcvebase.
CVE-2024-50142
published 2024-11-07

CVE-2024-50142: In the Linux kernel, the following vulnerability has been resolved: xfrm: validate new SA's prefixlen using SA family when sel.family is unset This expands the…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.26%
17.5th percentile
In the Linux kernel, the following vulnerability has been resolved: xfrm: validate new SA's prefixlen using SA family when sel.family is unset This expands the validation introduced in commit 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm selector.") syzbot created an SA with usersa.sel.family = AF_UNSPEC usersa.sel.prefixlen_s = 128 usersa.family = AF_INET Because of the AF_UNSPEC selector, verify_newsa_info doesn't put limits on prefixlen_{s,d}. But then copy_from_user_state sets x->sel.family to usersa.family (AF_INET). Do the same conversion in verify_newsa_info before validating prefixlen_{s,d}, since that's how prefixlen is going to be used later on.

Affected

48 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
debianlinux-6.1< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
linuxlinux
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f31398570acf0f0804c644006f7bfa9067106b0af31398570acf0f0804c644006f7bfa9067106b0a
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 401ad99a5ae7180dd9449eac104cb755f442e7f3401ad99a5ae7180dd9449eac104cb755f442e7f3
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8df5cd51fd70c33aa1776e5cbcd82b0a86649d738df5cd51fd70c33aa1776e5cbcd82b0a86649d73
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2d08a6c31c65f23db71a5385ee9cf9d8f9a67a712d08a6c31c65f23db71a5385ee9cf9d8f9a67a71
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < bce1afaa212ec380bf971614f70909a27882b862bce1afaa212ec380bf971614f70909a27882b862
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7d9868180bd1e4cf37e7c50673626589711623667d9868180bd1e4cf37e7c5067362658971162366
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e68dd80ba498265d2266b12dc3459164f4ff0c4ae68dd80ba498265d2266b12dc3459164f4ff0c4a
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3f0ab59e6537c6a8f9e1b355b48f9c05a76e85633f0ab59e6537c6a8f9e1b355b48f9c05a76e8563
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.115-16.1.115-1
linuxlinux_kernel>= 0 < 6.11.6-16.11.6-1
linuxlinux_kernel>= 0 < 6.11.6-16.11.6-1
linuxlinux_kernel>= 0 < 5.4.0-208.2285.4.0-208.228
linuxlinux_kernel>= 0 < 5.15.0-133.1445.15.0-133.144
linuxlinux_kernel>= 0 < 6.8.0-58.606.8.0-58.60
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 2.6.12 < 4.19.3234.19.323
linuxlinux_kernel>= 4.20 < 5.4.2855.4.285
linuxlinux_kernel>= 5.11 < 5.15.1705.15.170
linuxlinux_kernel>= 5.16 < 6.1.1156.1.115
linuxlinux_kernel>= 5.5 < 5.10.2295.10.229

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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