Vulnerability CVE-2010-0416
Published: 2010-02-18   Modified: 2012-02-13

Description:
Buffer overflow in the Unescape function in common/util/hxurl.cpp and player/hxclientkit/src/CHXClientSink.cpp in Helix Player 1.0.6 and RealPlayer allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a URL argument containing a % (percent) character that is not followed by two hex digits.

See advisories in our WLB2 database:
Topic
Author
Date
High
HelixPlayer 1.2.1 security update buffer overflow
RH
20.02.2010

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Realnetworks -> Helix player 
Realnetworks -> Realplayer 

 References:
https://helixcommunity.org/viewcvs/common/util/hxurl.cpp?view=log#rev1.24.4.1.4.1
https://bugzilla.redhat.com/show_bug.cgi?id=561856
http://www.redhat.com/support/errata/RHSA-2010-0094.html
http://secunia.com/advisories/38450
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10847
http://lists.helixcommunity.org/pipermail/common-cvs/2007-July/014956.html
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