Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2023-49062

7.5 · HIGH

Katran could disclose non-initialized kernel memory as part of an IP header.

Published Nov 28, 2023CWE-665EPSS 0.62%

Overview

CVE-2023-49062 is a high-severity vulnerability. It was published on November 28, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Katran could disclose non-initialized kernel memory as part of an IP header. The issue was present for IPv4 encapsulation and ICMP (v4) Too Big packet generation. After a bpf_xdp_adjust_head call, Katran code didn’t initialize the Identification field for the IPv4 header, resulting in writing content of kernel memory in that field of IP header. The issue affected all Katran versions prior to commit 6a03106ac1eab39d0303662963589ecb2374c97f

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/facebookincubator/katran/commit/6a03106ac1eab39d0303662963589ecb2374c97fRefwww.facebook.com/security/advisories/cve-2023-49062GitHubgithub.com/facebookincubator/katran/commit/6a03106ac1eab39d0303662963589ecb2374c97fRefwww.facebook.com/security/advisories/cve-2023-49062

How CyberStrike helps

Frequently asked questions

What is CVE-2023-49062?

CVE-2023-49062 is a high-severity vulnerability. It was published on November 28, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-49062?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-49062?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-49062?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-49062 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2023

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999