CVE-2023-49062

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Source

https://cve.org/CVERecord?id=CVE-2023-49062

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-49062.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2023-49062

Published

2023-11-28T16:15:07.023Z

Modified

2026-04-12T06:44:59.570616Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Summary

[none]

Details

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 bpfxdpadjust_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

References

Affected packages

Git / github.com/facebookincubator/katran

Affected ranges

Type: GIT
Repo: https://github.com/facebookincubator/katran
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

6a03106ac1eab39d0303662963589ecb2374c97f

Type: GIT
Repo: https://github.com/facebookincubator/katran
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

6a03106ac1eab39d0303662963589ecb2374c97f

Database specific

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "2023-11-15"
            }
        ]
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-49062.json"

vanir_signatures_modified

"2026-04-12T06:44:59Z"

vanir_signatures

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        "signature_version": "v1",
        "source": "https://github.com/facebookincubator/katran/commit/6a03106ac1eab39d0303662963589ecb2374c97f",
        "target": {
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            "file": "katran/lib/bpf/encap_helpers.h"
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