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Bug 507794 (CVE-2014-9403) - <net-irc/znc-1.2-r1 : "CWebAdminMod::ChanPage()" NULL Pointer Dereference Vulnerability (CVE-2014-9403)
Summary: <net-irc/znc-1.2-r1 : "CWebAdminMod::ChanPage()" NULL Pointer Dereference Vul...
Alias: CVE-2014-9403
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B3 [glsa]
Depends on:
Reported: 2014-04-16 07:51 UTC by Agostino Sarubbo
Modified: 2014-12-27 02:22 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description Agostino Sarubbo gentoo-dev 2014-04-16 07:51:23 UTC
From ${URL} :


A vulnerability has been reported in znc, which can be exploited by malicious users to cause a DoS (Denial of Service).

The vulnerability is caused due to a NULL pointer dereference error in the "CWebAdminMod::ChanPage()" function (modules/webadmin.cpp), which can be exploited to cause a crash.

The vulnerability is reported in version 1.2. Other versions may also be affected.

Fixed in the source cod repository.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Russell Bradford in a bug report.

Original Advisory:

@maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.
Comment 1 Alex Alexander (RETIRED) gentoo-dev 2014-04-18 07:33:55 UTC
Fixed in =net-irc/znc-1.2-r1

Please proceed with stabilization.
Comment 2 Agostino Sarubbo gentoo-dev 2014-04-18 18:41:06 UTC
Arches, please test and mark stable:
Target keywords : "amd64 x86"
Comment 3 Agostino Sarubbo gentoo-dev 2014-04-19 10:05:34 UTC
amd64 stable
Comment 4 Agostino Sarubbo gentoo-dev 2014-04-19 10:07:40 UTC
x86 stable.

Maintainer(s), please cleanup.
Security, please vote.
Comment 5 Alex Alexander (RETIRED) gentoo-dev 2014-05-07 03:38:09 UTC
Old ebuilds removed.
Comment 6 Yury German Gentoo Infrastructure gentoo-dev 2014-06-16 04:47:44 UTC
Maintainer(s), Thank you for cleanup!

GLSA Vote: Yes
Comment 7 Tobias Heinlein (RETIRED) gentoo-dev 2014-08-04 19:17:05 UTC
YES too, added to existing request.
Comment 8 Sean Amoss (RETIRED) gentoo-dev Security 2014-12-13 18:14:24 UTC
Marking this as pendingcve just so I don't accidentally send it before it's ready :P
Comment 9 GLSAMaker/CVETool Bot gentoo-dev 2014-12-19 01:08:58 UTC
This issue was resolved and addressed in
 GLSA 201412-31 at
by GLSA coordinator Sean Amoss (ackle).
Comment 10 GLSAMaker/CVETool Bot gentoo-dev 2014-12-27 02:22:06 UTC
CVE-2014-9403 (
  The CWebAdminMod::ChanPage function in modules/webadmin.cpp in ZNC before
  1.4 allows remote authenticated users to cause a denial of service (NULL
  pointer dereference and crash) by adding a channel with the same name as an
  existing channel but without the leading # character, related to a
  "use-after-delete" error.