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GNU tar "GNUTYPES_NAMES" Record Type Security Issue
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Secunia Advisory:
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SA23115
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Release Date:
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2006-11-28
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Last Update:
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2006-12-11
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Popularity:
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10,926 views
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Critical:
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Moderately critical
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Impact:
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Manipulation of data
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | GNU Tar 1.x
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| CVE reference: | CVE-2006-6097
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Description:
Teemu Salmela has reported a security issue in GNU tar, which can be exploited by malicious people to overwrite arbitrary files.
The security issue is caused due to the "extract_archive()" function in extract.c and the "extract_mangle()" function in mangle.c still processing the deprecated "GNUTYPE_NAMES" record type containing symbolic links. This can be exploited to overwrite arbitrary files by e.g. tricking a user into unpacking a specially crafted tar file.
The security issue is reported in version 1.15.1 and 1.16. Other versions may also be affected.
Solution:
Update to version 1.16.1.
Provided and/or discovered by:
Teemu Salmela
Changelog:
2006-12-11: Updated "Solution" section.
Original Advisory:
http://archives.neohapsis.com/archives/fulldisclosure/2006-11/0344.html
https://savannah.gnu.org/bugs/index.php?18355
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