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).
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TITLE:
SystemTap Denial of Service and Privilege Escalation Vulnerabilities
SECUNIA ADVISORY ID:
SA42256
VERIFY ADVISORY:
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RELEASE DATE:
2010-11-18
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http://secunia.com/advisories/42256/#comments
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http://secunia.com/advisories/42256/
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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:
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EXTENDED DESCRIPTION:
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EXTENDED SOLUTION:
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EXPLOIT:
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