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Secunia Security Advisory 43578

Secunia Security Advisory 43578
Posted Mar 22, 2011
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been reported in Pango, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise an application using the library.

tags | advisory, denial of service
SHA-256 | 55b22958956b0287eb70624e8d2de77d6541d9a42c720744571e971ae639f618

Secunia Security Advisory 43578

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Meet Secunia @ Microsoft Management Summit (MMS) in Las Vegas, USA (21-25 March).

http://secunia.com/company/events/mms_2011/


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TITLE:
Pango "hb_buffer_ensure()" Memory Reallocation Vulnerability

SECUNIA ADVISORY ID:
SA43578

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43578/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43578

RELEASE DATE:
2011-03-22

DISCUSS ADVISORY:
http://secunia.com/advisories/43578/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)

http://secunia.com/advisories/43578/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43578

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in Pango, which can be exploited by
malicious people to cause a DoS (Denial of Service) and potentially
compromise an application using the library.

The vulnerability is caused due to the "hb_buffer_ensure()" function
in pango/opentype/hb-buffer.c not properly checking the return value
of memory reallocation operations, which can be exploited to cause
the use of an incorrect base address when trying to access the buffer
in subsequent functions.

The vulnerability is reported in version 1.28.3. Other versions may
also be affected.

SOLUTION:
Do not use applications using the library.

PROVIDED AND/OR DISCOVERED BY:
Red Hat credits the Mozilla Security Team.

ORIGINAL ADVISORY:
Mozilla Bug #606997:
https://bugzilla.mozilla.org/show_bug.cgi?id=606997

Red Hat Bug #678563:
https://bugzilla.redhat.com/show_bug.cgi?id=678563

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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