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[ GLSA 200903-15 ] git: Multiple vulnerabilties
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PostPosted: Mon Mar 09, 2009 6:26 pm    Post subject: [ GLSA 200903-15 ] git: Multiple vulnerabilties Reply with quote

Gentoo Linux Security Advisory

Title: git: Multiple vulnerabilties (GLSA 200903-15)
Severity: high
Exploitable: remote
Date: March 09, 2009
Bug(s): #251343
ID: 200903-15

Synopsis

Multiple vulnerabilities in gitweb allow for remote execution of arbitrary commands.

Background

GIT - the stupid content tracker, the revision control system used by the Linux kernel team.

Affected Packages

Package: dev-util/git
Vulnerable: < 1.6.0.6
Unaffected: >= 1.6.0.6
Architectures: All supported architectures


Description

Multiple vulnerabilities have been reported in gitweb that is part of the git package:
  • Shell metacharacters related to git_search are not properly sanitized (CVE-2008-5516).
  • Shell metacharacters related to git_snapshot and git_object are not properly sanitized (CVE-2008-5517).
  • The diff.external configuration variable as set in a repository can be executed by gitweb (CVE-2008-5916).


Impact

A remote unauthenticated attacker can execute arbitrary commands via shell metacharacters in a query, remote attackers with write access to a git repository configuration can execute arbitrary commands with the privileges of the user running gitweb by modifying the diff.external configuration variable in the repository and sending a crafted query to gitweb.

Workaround

There is no known workaround at this time.

Resolution

All git users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-util/git-1.6.0.6"


References

CVE-2008-5516
CVE-2008-5517
CVE-2008-5916
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