Bug 1205130 (CVE-2015-2779) - CVE-2015-2779 quassel: incorrect message splitting leading to DoS
Summary: CVE-2015-2779 quassel: incorrect message splitting leading to DoS
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2015-2779
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1205131 1205132 1205133
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-03-24 10:08 UTC by Martin Prpič
Modified: 2019-09-29 13:30 UTC (History)
3 users (show)

Fixed In Version: quassel 0.12-rc1
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-06-08 02:40:31 UTC
Embargoed:

Attachments (Terms of Use)

Description Martin Prpič 2015-03-24 10:08:32 UTC 
A denial-of-service flaw was found in Quassel IRC, a distributed IRC client:

This patch fixes two bugs. The first is garbage characters caused by accidentally splitting the string in the middle of a multibyte character. Since the new code splits at a character level instead of a byte level, this will no longer be an issue. The second is the core crash caused by sending an overlength CTCP query ("/me") containing only multibyte characters. This bug was caused by the old CTCP splitter using the byte index from lastParamOverrun() as a character index for a QString.

https://github.com/quassel/quassel/commit/b5e38970ffd55e2dd9f706ce75af9a8d7730b1b8
Comment 1 Martin Prpič 2015-03-24 10:09:01 UTC 
Created quassel tracking bugs for this issue:

Affects: fedora-all [bug 1205131]
Affects: epel-6 [bug 1205132]
Affects: epel-7 [bug 1205133]
Comment 2 Fedora Update System 2015-05-26 03:45:20 UTC 
quassel-0.11.0-2.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 3 Fedora Update System 2015-08-04 05:25:50 UTC 
quassel-0.11.0-2.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2015-08-05 05:29:38 UTC 
quassel-0.11.0-2.el7 has been pushed to the Fedora EPEL 7 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Product Security DevOps Team 2019-06-08 02:40:31 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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