Bug 537884 – <net-proxy/privoxy-3.0.23: Multiple vulnerabilities (CVE-2015-{1380,1381,1382})

• Status: RESOLVED FIXED
• Product: Gentoo Security

[Description Kristian Fiskerstrand (RETIRED) 2015-01-26 17:37:35 UTC]

From ${URL}:
Privoxy is a non-caching web proxy with advanced filtering capabilities
for enhancing privacy, modifying web page data and HTTP headers, controlling
access, and removing ads and other obnoxious Internet junk. For details see:
http://www.privoxy.org/

Privoxy 3.0.23 contains fixes for the following security issues:

- Fixed a DoS issue in case of client requests with incorrect
  chunk-encoded body. When compiled with assertions enabled
  (the default) they could previously cause Privoxy to abort().
  Reported by Matthew Daley.
  http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/jcc.c?r1=1.433&r2=1.434

- Fixed multiple segmentation faults and memory leaks in the
  pcrs code. This fix also increases the chances that an invalid
  pcrs command is rejected as such. Previously some invalid commands
  would be loaded without error. Note that Privoxy's pcrs sources
  (action and filter files) are considered trustworthy input and
  should not be writable by untrusted third-parties.
  http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/pcrs.c?r1=1.46&r2=1.47

- Fixed an 'invalid read' bug which could at least theoretically
  cause Privoxy to crash.
  http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/parsers.c?r1=1.297&r2=1.298

Please assign CVEs for them.

The second issue could potentially affect other programs that use pcrs.c,
but I'm not aware of any that do. Privoxy imported the file from the upstream
project pcrs (not to be confused with pcre) which is no longer maintained.

The last two issues were partially discovered with afl-fuzz.

Fabian

[Comment 1 Andrew Savchenko 2015-01-26 21:13:36 UTC]

privoxy-3.0.23 in tree. No unstable versions left.

Arch teams, please stabilize ver. 3.0.23.

[Comment 2 Agostino Sarubbo 2015-01-28 13:34:24 UTC]

amd64 stable

[Comment 3 Agostino Sarubbo 2015-01-31 10:32:43 UTC]

ppc stable

[Comment 4 GLSAMaker/CVETool Bot 2015-02-11 17:51:16 UTC]

CVE-2015-1382 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-1382):
  parsers.c in Privoxy before 3.0.23 allows remote attackers to cause a denial
  of service (invalid read and crash) via vectors related to an HTTP time
  header.

CVE-2015-1381 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-1381):
  Multiple unspecified vulnerabilities in pcrs.c in Privoxy before 3.0.23
  allow remote attackers to cause a denial of service (segmentation fault or
  memory consumption) via unspecified vectors.

CVE-2015-1380 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-1380):
  jcc.c in Privoxy before 3.0.23 allows remote attackers to cause a denial of
  service (abort) via a crafted chunk-encoded body.

[Comment 5 Agostino Sarubbo 2015-02-15 15:08:32 UTC]

x86 stable

[Comment 6 Agostino Sarubbo 2015-02-16 10:23:09 UTC]

sparc stable

[Comment 7 Agostino Sarubbo 2015-02-18 08:52:23 UTC]

ppc64 stable

[Comment 8 Agostino Sarubbo 2015-02-24 10:58:29 UTC]

alpha stable

[Comment 9 Markus Meier 2015-02-26 19:03:19 UTC]

arm stable, all arches done.

[Comment 10 Andrew Savchenko 2015-02-27 03:45:20 UTC]

All vulnerable versions are removed from tree.

[Comment 11 Kristian Fiskerstrand (RETIRED) 2015-02-28 21:47:17 UTC]

Arches, thank you for your work. 

GLSA Vote: No

[Comment 12 Yury German 2015-03-01 14:13:45 UTC]

Arches and Maintainer(s), Thank you for your work.

GLSA Vote: No