5.5

CVE-2024-50142

xfrm: validate new SA's prefixlen using SA family when sel.family is unset

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.12 < 4.19.323
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.285
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.229
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.170
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.115
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.59
Linux ≫ Linux Kernel Version >= 6.7 < 6.11.6
Linux ≫ Linux Kernel Version6.12 Updaterc1
Linux ≫ Linux Kernel Version6.12 Updaterc2
Linux ≫ Linux Kernel Version6.12 Updaterc3
Linux ≫ Linux Kernel Version6.12 Updaterc4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.26% 0.172
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71
Patch
https://git.kernel.org/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563
Patch
https://git.kernel.org/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3
Patch
https://git.kernel.org/stable/c/7d9868180bd1e4cf37e7c5067362658971162366
Patch
https://git.kernel.org/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73
Patch
https://git.kernel.org/stable/c/bce1afaa212ec380bf971614f70909a27882b862
Patch
https://git.kernel.org/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a
Patch
https://git.kernel.org/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a
Patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html