NULL Pointer Dereference Affecting vexctl package, versions <0.2.6-r0


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.06% (25th percentile)

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  • Snyk ID SNYK-WOLFILATEST-VEXCTL-6262860
  • published 22 Feb 2024
  • disclosed 9 Jan 2024

How to fix?

Upgrade Wolfi vexctl to version 0.2.6-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vexctl package and not the vexctl package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

jwx is a Go module implementing various JWx (JWA/JWE/JWK/JWS/JWT, otherwise known as JOSE) technologies. Calling jws.Parse with a JSON serialized payload where the signature field is present while protected is absent can lead to a nil pointer dereference. The vulnerability can be used to crash/DOS a system doing JWS verification. This vulnerability has been patched in versions 2.0.19 and 1.2.28.

CVSS Scores

version 3.1
Expand this section

NVD

Recommended
7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High