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
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: facebook

Published: 2023-11-28T15:45:42.674Z

Updated: 2024-08-02T21:46:28.773Z

Reserved: 2023-11-20T19:59:38.627Z

Link: CVE-2023-49062

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2023-11-28T16:15:07.023

Modified: 2023-12-04T19:46:20.953

Link: CVE-2023-49062

cve-icon Redhat

No data.