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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200612-03] GnuPG: Multiple vulnerabilities


Vulnerability Assessment Details

[GLSA-200612-03] GnuPG: Multiple vulnerabilities

Vulnerability Assessment Summary
GnuPG: Multiple vulnerabilities

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200612-03
(GnuPG: Multiple vulnerabilities)


Hugh Warrington has reported a boundary error in GnuPG, in the
"ask_outfile_name()" function from openfile.c: the
make_printable_string() function could return a string longer than
expected. Additionally, Tavis Ormandy of the Gentoo Security Team
reported a design error in which a function pointer can be incorrectly
dereferenced.

Impact

A remote attacker could entice a user to interactively use GnuPG on a
crafted file and trigger the boundary error, which will result in a
buffer overflow. They could also entice a user to process a signed or
encrypted file with gpg or gpgv, possibly called through another
application like a mail client, to trigger the dereference error. Both
of these vulnerabilities would result in the execution of arbitrary
code with the permissions of the user running GnuPG. gpg-agent, gpgsm
and other tools are not affected.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6169
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6235


Solution:
All GnuPG users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose "=app-crypt/gnupg-1.4*"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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