Vulnerability Monitor

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CVE-2023-2156

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.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 4 products from linux, from redhat, from fedoraproject and 1 other, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2023-05-09T22:15:10.133

Last Modified

2024-11-21T07:58:02.757

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Secondary
CWE-617
Type: Primary
CWE-617

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 5.10.184	Yes
Operating System	linux	linux_kernel	< 5.15.117	Yes
Operating System	linux	linux_kernel	< 6.1.34	Yes
Operating System	linux	linux_kernel	< 6.2.13	Yes
Operating System	linux	linux_kernel	< 6.3.8	Yes
Operating System	redhat	enterprise_linux	9.0	Yes
Operating System	fedoraproject	fedora	38	Yes
Operating System	debian	debian_linux	10.0	Yes

References

http://www.openwall.com/lists/oss-security/2023/05/17/8 Mailing List ([email protected])
http://www.openwall.com/lists/oss-security/2023/05/17/9 Mailing List ([email protected])
http://www.openwall.com/lists/oss-security/2023/05/18/1 Mailing List ([email protected])
http://www.openwall.com/lists/oss-security/2023/05/19/1 Mailing List ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=2196292 Issue Tracking, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html Mailing List, Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20230622-0001/ Mailing List, Third Party Advisory ([email protected])
https://www.debian.org/security/2023/dsa-5448 Third Party Advisory, VDB Entry ([email protected])
https://www.debian.org/security/2023/dsa-5453 Third Party Advisory, VDB Entry ([email protected])
https://www.zerodayinitiative.com/advisories/ZDI-23-547/ Third Party Advisory, VDB Entry ([email protected])
http://www.openwall.com/lists/oss-security/2023/05/17/8 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2023/05/17/9 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2023/05/18/1 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2023/05/19/1 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=2196292 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20230622-0001/ Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2023/dsa-5448 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2023/dsa-5453 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://www.zerodayinitiative.com/advisories/ZDI-23-547/ Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.