Link Following Affecting bash package, versions <4.0-2


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-DEBIAN11-BASH-525532
  • published 8 Dec 2008
  • disclosed 8 Dec 2008

How to fix?

Upgrade Debian:11 bash to version 4.0-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bash package and not the bash package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

bash-doc 3.2 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/cb#####.? temporary file, related to the (1) aliasconv.sh, (2) aliasconv.bash, and (3) cshtobash scripts.

CVSS Scores

version 3.1
Expand this section

NVD

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