5.5

CVE-2022-48911

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

netfilter: nf_queue: fix possible use-after-free

Eric Dumazet says:
  The sock_hold() side seems suspect, because there is no guarantee
  that sk_refcnt is not already 0.

On failure, we cannot queue the packet and need to indicate an
error.  The packet will be dropped by the caller.

v2: split skb prefetch hunk into separate change
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.29 < 4.9.305
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.270
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.233
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.183
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.104
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.27
Linux ≫ Linux Kernel Version >= 5.16 < 5.16.13
Linux ≫ Linux Kernel Version5.17 Updaterc1
Linux ≫ Linux Kernel Version5.17 Updaterc2
Linux ≫ Linux Kernel Version5.17 Updaterc3
Linux ≫ Linux Kernel Version5.17 Updaterc4
Linux ≫ Linux Kernel Version5.17 Updaterc5
Linux ≫ Linux Kernel Version5.17 Updaterc6
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.01% 0.013
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
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.