Katran could disclose non-initialized kernel memory as part of an IP header.
Priority LOW 34CWE-665Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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
Why it matters now
EPSS 0.00622 50th percentileScored 2026-11-07
Fix Fixed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-49062
- 2026-10-03 Alias added: GHSA-wjqw-hrp5-6whj
- 2026-11-07 EPSS moved to the 50th–90th percentile
References
Sources
- CVE-2023-49062 · CVE Program
- CVE-2023-49062 · NVD
- FIRST EPSS
- GHSA-wjqw-hrp5-6whj · GitHub Advisory Database · CC BY 4.0
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