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CVE-2022-36879

An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.

Published: Jul 27, 2022Updated: May 5, 2025 Sources: CVE List NVD BDU csafNVD-CWE-Other
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.3%
Top 78.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.0. Siemens has released a new version for SIMATIC S7-1500 TM MFP - GNU/Linux subsystem and recommends to update to the latest version. This advisory lists vulnerabilities for firmware version V1.0 only; for V1.1 refer to Siemens Security Advisory SSA-265688 ( https://cert-portal.siemens.com/productcert/html/ssa-265688.html).

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

NVD-CWE-Other

Affected Products

Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
ОСОН ОСнова ОnyxАО «НППКТ»
On-premOS
Operating Systems / linux-distro
LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
n/an/a
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
ооо «ред софт»commercialRUOperating Systemsaka red soft
ао «нппкт»commercialRUOperating Systems
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
and 24 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

References

https://cert-portal.siemens.com/productcert/csaf/ssa-794697.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-794697.pdf
cert-portal.siemens.com
and 53 more references View all →

Timeline

Published
Jul 27, 2022
Last Updated
May 5, 2025

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