7.8

CVE-2023-52846

hsr: Prevent use after free in prp_create_tagged_frame()

In the Linux kernel, the following vulnerability has been resolved:

hsr: Prevent use after free in prp_create_tagged_frame()

The prp_fill_rct() function can fail.  In that situation, it frees the
skb and returns NULL.  Meanwhile on the success path, it returns the
original skb.  So it's straight forward to fix bug by using the returned
value.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.9 < 5.10.201
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.139
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.63
Linux ≫ Linux Kernel Version >= 6.2 < 6.5.12
Linux ≫ Linux Kernel Version >= 6.6 < 6.6.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.154
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/1787b9f0729d318d67cf7c5a95f0c3dba9a7cc18
Patch
https://git.kernel.org/stable/c/6086258bd5ea7b5c706ff62da42b8e271b2401db
Patch
https://git.kernel.org/stable/c/876f8ab52363f649bcc74072157dfd7adfbabc0d
Patch
https://git.kernel.org/stable/c/a1a485e45d24b1cd8fe834fd6f1b06e2903827da
Patch
https://git.kernel.org/stable/c/d103fb6726904e353b4773188ee3d3acb4078363
Patch
https://git.kernel.org/stable/c/ddf4e04e946aaa6c458b8b6829617cc44af2bffd
Patch