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TITLE:
NetBSD Denial of Service and Privilege Escalation Vulnerabilities

SECUNIA ADVISORY ID:
SA41892

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/41892/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=41892

RELEASE DATE:
2010-10-21

DISCUSS ADVISORY:
http://secunia.com/advisories/41892/#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/41892/

ONLY AVAILABLE IN CUSTOMER AREA:
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 * Secunia PoC
 * Secunia Analysis
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 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=41892

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:
Two vulnerabilities have been reported in NetBSD, which can be
exploited by malicious, local users to cause a DoS (Denial of
Service) or gain escalated privileges.

1) The "larn" game does not properly handling SETGID permissions,
which can be exploited to e.g. modify files in the "/var/games"
directory with privileges of the "games" group.

2) A signedness error in the "SMBIOC_OPENSESSION" ioctl of the netsmb
file system kernel module can be exploited to cause the kernel to
allocate large memory buffers and exhaust all memory.

SOLUTION:
Fixed in the CVS repository (please see the vendor advisory for
details).

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) David A. Holland.
2) Dan J. Rosenberg

ORIGINAL ADVISORY:
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2010-009.txt.asc
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2010-010.txt.asc

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:
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