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Secunia Security Advisory 42256

Secunia Security Advisory 42256
Posted Nov 18, 2010
Authored by Secunia | Site secunia.com

Secunia Security Advisory - Two vulnerabilities have been reported in SystemTap, which can be exploited by malicious, local users to gain escalated privileges and cause a DoS (Denial of Service).

tags | advisory, denial of service, local, vulnerability
MD5 | f443c401442aab4292056fc5b9a6c00f

Secunia Security Advisory 42256

Change Mirror Download
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Join the beta:
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TITLE:
SystemTap Denial of Service and Privilege Escalation Vulnerabilities

SECUNIA ADVISORY ID:
SA42256

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42256/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42256

RELEASE DATE:
2010-11-18

DISCUSS ADVISORY:
http://secunia.com/advisories/42256/#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/42256/

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=42256

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 SystemTap, which can be
exploited by malicious, local users to gain escalated privileges and
cause a DoS (Denial of Service).

1) An improper environment sanitation in the "/usr/bin/staprun"
setuid program when loading kernel modules can be exploited to
escalate privileges.

2) An error in the "/usr/bin/staprun" setuid program when unloading
kernel modules can be exploited to unload arbitrary unused modules
and potentially cause a DoS.

The vulnerabilities are reported in version 1.3. Other versions may
also be affected.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Tavis Ormandy.

ORIGINAL ADVISORY:
http://sources.redhat.com/ml/systemtap/2010-q4/msg00230.html

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/

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

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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