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TITLE:
GNU TeXmacs LD_LIBRARY_PATH Security Issues

SECUNIA ADVISORY ID:
SA43645

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43645/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43645

RELEASE DATE:
2011-03-08

DISCUSS ADVISORY:
http://secunia.com/advisories/43645/#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/43645/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=43645

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 security issues have been reported in GNU TeXmacs, which can be
exploited by malicious, local users to gain escalated privileges.

The security issues are caused due to the
"src/plugins/mupad/bin/tm_mupad_help" and "src/misc/bundle/TeXmacs"
scripts incorrectly setting the environment variables LD_LIBRARY_PATH
or DYLD_LIBRARY_PATH. This can be exploited to gain escalated
privileges by e.g. tricking a user into running the scripts in a
directory containing a malicious library.

The security issues are reported in version 1.0.7. Other versions may
also be affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Red Hat credits Raphael Geissert.

ORIGINAL ADVISORY:
Red Hat Bug #638427:
https://bugzilla.redhat.com/show_bug.cgi?id=638427

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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Please Note:
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Secunia NEVER sends attached files with advisories.
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use those supplied by the vendor.

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