Time-of-check Time-of-use (TOCTOU) Affecting libuser package, versions *


Severity

Recommended
low

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.05% (16th percentile)

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  • Snyk ID SNYK-CENTOS6-LIBUSER-1944596
  • published 26 Jul 2021
  • disclosed 28 Mar 2013

How to fix?

There is no fixed version for Centos:6 libuser.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libuser package and not the libuser package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

libuser 0.56 and 0.57 has a TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees.

CVSS Scores

version 3.1
Expand this section

NVD

6.3 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

4.9 medium