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TITLE:
SystemTap Division By Zero Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA44608

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/44608/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=44608

RELEASE DATE:
2011-05-23

DISCUSS ADVISORY:
http://secunia.com/advisories/44608/#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/44608/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
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https://ca.secunia.com/?page=viewadvisory&vuln_id=44608

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:
Some vulnerabilities have been reported in SystemTap, which can be
exploited by malicious, local users to cause a DoS (Denial of
Service).

1) A division by zero error within the "translate()" function in
loc2c.c when handling certain specially crafted DWARF information can
be exploited to cause a kernel crash.

2) A division by zero error within the "compute_expr()" function in
runtime/unwind.c when handling certain specially crafted DWARF
information can be exploited to cause a kernel crash.

The vulnerabilities are reported in version 1.4. Other versions may
also be affected.

SOLUTION:
Fixed in the GIT repository.

Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
https://bugzilla.redhat.com/show_bug.cgi?id=702687
http://sourceware.org/git/?p=systemtap.git;a=commit;h=fa2e3415185a28542d419a641ecd6cddd52e3cd9

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:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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use those supplied by the vendor.

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