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Insecure Library Loading
Not critical

SSSD "pam_parse_in_data_v2()" Denial of Service Vulnerability

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Release Date:  2011-01-24    Last Update:  2011-05-02    Views:  2,489

Secunia Advisory SA43053

Where:

Local system

Impact:

DoS

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


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

The vulnerability is caused due to an error within the "pam_parse_in_data_v2()" function in src/responder/pam/pamsrv_cmd.c and can be exploited to trigger an endless loop and e.g. cause a crash by sending specially crafted packages to SSSD.

The vulnerability is reported in version 1.5.0. Other versions may also be affected.


Solution:
Update to version 1.5.1 or later.

Provided and/or discovered by:
Sebastian Krahmer

Original Advisory:
Red Hat Bug #661163:
https://bugzilla.redhat.com/show_bug.cgi?id=661163

https://fedorahosted.org/sssd/changeset/f15683b4b100351e24e305d25bd4785c79ac8f55
https://fedorahosted.org/sssd/wiki/Releases/Notes-1.5.1

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: SSSD "pam_parse_in_data_v2()" Denial of Service Vulnerability

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