The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - bpf: Prevent tail call between progs attached to different hooks bpf progs can be attached to kernel     functions, and the attached functions can take different parameters or return different return values. If     prog attached to one kernel function tail calls prog attached to another kernel function, the ctx access     or return value verification could be bypassed. For example, if prog1 is attached to func1 which takes     only 1 parameter and prog2 is attached to func2 which takes two parameters. Since verifier assumes the bpf     ctx passed to prog2 is constructed based on func2's prototype, verifier allows prog2 to access the second     parameter from the bpf ctx passed to it. The problem is that verifier does not prevent prog1 from passing     its bpf ctx to prog2 via tail call. In this case, the bpf ctx passed to prog2 is constructed from func1     instead of func2, that is, the assumption for ctx access verification is bypassed. Another example, if BPF     LSM prog1 is attached to hook file_alloc_security, and BPF LSM prog2 is attached to hook     bpf_lsm_audit_rule_known. Verifier knows the return value rules for these two hooks, e.g. it is legal for     bpf_lsm_audit_rule_known to return positive number 1, and it is illegal for file_alloc_security to return     positive number. So verifier allows prog2 to return positive number 1, but does not allow prog1 to return     positive number. The problem is that verifier does not prevent prog1 from calling prog2 via tail call. In     this case, prog2's return value 1 will be used as the return value for prog1's hook file_alloc_security.
    That is, the return value rule is bypassed. This patch adds restriction for tail call to prevent such     bypasses. (CVE-2024-50063)

Note that Nessus relies on the presence of the package as reported by the vendor.

Detections

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Linux Distros Unpatched Vulnerability : CVE-2024-50063

high Nessus Plugin ID 231593

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.4 Sep 3, 2025, 6:28 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin Feed: 202509030628
Version 1.3 Aug 28, 2025, 1:38 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202508280138
Version 1.2 Aug 9, 2025, 7:26 AM CVSS metrics ("CVSSv2 score" set to 5.2) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:S/C:C/I:P/A:N") CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202508090726
Version 1.1 Mar 6, 2025, 5:02 PM New Plugin Feed: 202503061702