Bug 447572 – <net-analyzer/fail2ban-0.8.8: input variable quoting vulnerability (CVE-2012-5642)

• Status: RESOLVED FIXED
• Product: Gentoo Security

[Description Mario Kicherer 2012-12-17 10:25:40 UTC]

Version 0.8.8 came out 2012/12/06. I tested it with the fail2ban-0.8.7.1 ebuild and it works for me on AMD64.

Reproducible: Always

[Comment 1 Jeroen Roovers (RETIRED) 2012-12-17 12:20:49 UTC]

   * [83109bc] IMPORTANT: escape the content of <matches> (if used in
     custom action files) since its value could contain arbitrary
     symbols.  Thanks for discovery go to the NBS System security
     team

[Comment 2 Sean Amoss (RETIRED) 2012-12-26 16:47:29 UTC]

Thanks, Mario and Jeroen.

Arches, please test and mark stable
=net-analyzer/fail2ban-0.8.8

[Comment 3 Jeff (JD) Horelick (RETIRED) 2012-12-26 17:00:44 UTC]

x86 stable

[Comment 4 Agostino Sarubbo 2012-12-26 17:19:13 UTC]

amd64 stable

[Comment 5 Jeroen Roovers (RETIRED) 2012-12-28 16:53:54 UTC]

Stable for HPPA.

[Comment 6 Agostino Sarubbo 2012-12-31 23:30:54 UTC]

ppc stable

[Comment 7 GLSAMaker/CVETool Bot 2013-01-03 11:42:44 UTC]

CVE-2012-5642 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-5642):
  server/action.py in Fail2ban before 0.8.8 does not properly handle the
  content of the matches tag, which might allow remote attackers to trigger
  unsafe behavior in a custom action file via unspecified symbols in this
  content.

[Comment 8 Agostino Sarubbo 2013-01-04 13:15:35 UTC]

ppc64 stable

[Comment 9 Sean Amoss (RETIRED) 2013-01-06 17:21:01 UTC]

GLSA vote: no.

[Comment 10 Mario Kicherer 2013-02-22 20:37:09 UTC]

Can we close this bug? I guess GLSA is not required anymore. :)

[Comment 11 Tobias Heinlein (RETIRED) 2013-02-22 20:44:04 UTC]

NO too, closing.