Learn about CVE-2023-49062, a vulnerability in Katran that exposes uninitialized kernel memory in the IP header, affecting versions before commit 6a03106ac1eab39d0303662963589ecb2374c97f. Find out the impact, technical details, and mitigation steps.
This article provides detailed information about CVE-2023-49062, a vulnerability in Katran affecting versions prior to commit 6a03106ac1eab39d0303662963589ecb2374c97f.
Understanding CVE-2023-49062
Katran could disclose non-initialized kernel memory in an IP header due to missing initialization of the Identification field for the IPv4 header post a bpf_xdp_adjust_head call.
What is CVE-2023-49062?
CVE-2023-49062 is a vulnerability in Katran that could lead to the exposure of uninitialized kernel memory in the IP header, affecting versions before commit 6a03106ac1eab39d0303662963589ecb2374c97f.
The Impact of CVE-2023-49062
The vulnerability could potentially be exploited by an attacker to read sensitive information from the kernel memory, leading to unauthorized access or further attacks.
Technical Details of CVE-2023-49062
The following technical aspects are associated with CVE-2023-49062.
Vulnerability Description
Katran versions before commit 6a03106ac1eab39d0303662963589ecb2374c97f did not initialize the Identification field for the IPv4 header, resulting in disclosure of non-initialized kernel memory.
Affected Systems and Versions
All versions of Katran prior to commit 6a03106ac1eab39d0303662963589ecb2374c97f are affected by this vulnerability.
Exploitation Mechanism
An attacker could potentially exploit this vulnerability by manipulating the IP header to read sensitive kernel memory data.
Mitigation and Prevention
To mitigate the risks associated with CVE-2023-49062, the following steps are recommended.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Stay informed about security advisories from Katran and promptly apply patches and updates to address known vulnerabilities.