exploit the possibilities

Secunia Security Advisory 50235

Secunia Security Advisory 50235
Posted Aug 16, 2012
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been reported in Fetchmail, which can be exploited by malicious people to cause a DoS (Denial of Service).

tags | advisory, denial of service
MD5 | ad6c856d9f7bc2b3a1ddd449d6ee6752

Secunia Security Advisory 50235

Change Mirror Download
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Seamless integration with your existing security solutions Sign-up to
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TITLE:
Fetchmail NTLM Challenge Decoding Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA50235

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50235/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50235

RELEASE DATE:
2012-08-14

DISCUSS ADVISORY:
http://secunia.com/advisories/50235/#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/50235/

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=50235

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 Fetchmail, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to the application not properly
checking the base64 encoded NTLM challenges before decoding them and
can be exploited to cause a crash.

The vulnerability is reported in versions 6.3.21 and prior.

SOLUTION:
Fixed in the GIT repository. A fix is scheduled to be released in the
upcoming version 6.3.22.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits James Porter Clark

ORIGINAL ADVISORY:
http://www.openwall.com/lists/oss-security/2012/08/13/9

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

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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