Medium severity · published Sep 26, 2023
CVE-2023-5197
Use-after-free in Linux kernel's netfilter: nf_tables component
6.6
CVSS
0.4%
EPSS
No
On KEV
Description
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
Addition and removal of rules from chain bindings within the same transaction causes leads to use-after-free.
We recommend upgrading past commit f15f29fd4779be8a418b66e9d52979bb6d6c2325.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
5.9 before 6.6 · source: vendor, NVD
DL
Debian Linux · Debian
10.0 · source: NVD
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
before V1.1 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-5197
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-5197
Third Party Advisory
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f15f29fd4779be8a418b66e9d52979bb6d6c2325
Patch
https://kernel.dance/f15f29fd4779be8a418b66e9d52979bb6d6c2325
Mailing List
https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
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