Home/CVE/A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol. This issue res
CVE

CVE-2023-2156

A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol. This issue res

A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol. This issue results from the lack of proper handling of user-supplied data, which can lead to an assertion failure. This may allow an unauthenticated remote attacker to create a denial of service condition on the system.

HIGH · CVSS 7.5 EPSS 0.02125
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-617Reachable Assertion
CWE-617Reachable Assertion
▤

Affected Products & Versions

8
linux kernel>= 5.7 and < 5.10.184
linux kernel>= 5.11 and < 5.15.117
linux kernel>= 5.16 and < 6.1.34
linux kernel>= 6.2 and < 6.2.13
linux kernel>= 6.3 and < 6.3.8
redhat enterprise linuxall versions
fedoraproject fedoraall versions
debian linuxall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 May 2023 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

30
rhsaRHSA-2023:6583Moderate
usnUSN-6466-1
usnUSN-6445-2
usnUSN-6445-1
usnUSN-6416-3
🔗

References & Sources

10
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2023/05/17/8Mailing List
http://www.openwall.com/lists/oss-security/2023/05/17/9Mailing List
http://www.openwall.com/lists/oss-security/2023/05/18/1Mailing List
http://www.openwall.com/lists/oss-security/2023/05/19/1Mailing List
https://bugzilla.redhat.com/show_bug.cgi?id=2196292Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00001.htmlMailing ListThird Party Advisory
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