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Bug 521930 (CVE-2012-6656) - <sys-libs/glibc-2.17: iconv() segfaults if the invalid multibyte character 0xffff is input when converting from IBM930
Summary: <sys-libs/glibc-2.17: iconv() segfaults if the invalid multibyte character 0x...
Alias: CVE-2012-6656
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Security
Whiteboard: A3 [glsa cleanup]
Depends on:
Reported: 2014-09-02 08:13 UTC by Agostino Sarubbo
Modified: 2015-03-08 14:54 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Agostino Sarubbo gentoo-dev 2014-09-02 08:13:11 UTC
From ${URL} :

When converting IBM930 code with iconv(), if IBM930 code which includes invalid multibyte character "0xffff" is specified, then iconv() segfaults.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
Run the following command:

echo '0x0e 0x43 0x8c 0xff 0xff 0x43 0xbd 0x43 0xbd' | xxd -r | iconv -f IBM930 -t UTF-8
Actual results:

Expected results:
サiconv: illegal input sequence at position 3

@maintainer(s): since the fixed version is already stable, please remove the affected versions from the tree.
Comment 1 Kristian Fiskerstrand (RETIRED) gentoo-dev 2014-09-02 08:18:51 UTC
New GLSA request filed
Comment 2 Yury German Gentoo Infrastructure gentoo-dev 2015-03-03 02:38:15 UTC
Maintainer(s), please drop the vulnerable version(s).
Comment 3 Yury German Gentoo Infrastructure gentoo-dev 2015-03-03 03:06:17 UTC
Florian Weimer 2014-08-29 09:59:27 UTC
Fixed in commit 6e230d11837f3ae7b375ea69d7905f0d18eb79e5, which went into glibc 2.16.
Comment 4 GLSAMaker/CVETool Bot gentoo-dev 2015-03-08 14:54:48 UTC
This issue was resolved and addressed in
 GLSA 201503-04 at
by GLSA coordinator Kristian Fiskerstrand (K_F).