CVE-2014-6040: Buffer Overflow
First published: Fri Dec 05 2014(Updated: )
GNU C Library (aka glibc) before 2.20 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via a multibyte character value of "0xffff" to the iconv function when converting (1) IBM933, (2) IBM935, (3) IBM937, (4) IBM939, or (5) IBM1364 encoded data to UTF-8.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU C Library | <=2.19 | |
| GNU C Library | =2.0 | |
| GNU C Library | =2.0.1 | |
| GNU C Library | =2.0.2 | |
| GNU C Library | =2.0.3 | |
| GNU C Library | =2.0.4 | |
| GNU C Library | =2.0.5 | |
| GNU C Library | =2.0.6 | |
| GNU C Library | =2.1 | |
| GNU C Library | =2.1.1 | |
| GNU C Library | =2.1.1.6 | |
| GNU C Library | =2.1.2 | |
| GNU C Library | =2.1.3 | |
| GNU C Library | =2.1.9 | |
| GNU C Library | =2.10.1 | |
| GNU C Library | =2.11 | |
| GNU C Library | =2.11.1 | |
| GNU C Library | =2.11.2 | |
| GNU C Library | =2.11.3 | |
| GNU C Library | =2.12 | |
| GNU C Library | =2.12.1 | |
| GNU C Library | =2.12.2 | |
| GNU C Library | =2.13 | |
| GNU C Library | =2.14 | |
| GNU C Library | =2.14.1 | |
| GNU C Library | =2.15 | |
| GNU C Library | =2.16 | |
| GNU C Library | =2.17 | |
| GNU C Library | =2.18 |
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Reference Links
- http://linux.oracle.com/errata/ELSA-2015-0016.html
- http://secunia.com/advisories/62100
- http://secunia.com/advisories/62146
- http://ubuntu.com/usn/usn-2432-1
- http://www.debian.org/security/2015/dsa-3142
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:175
- http://www.openwall.com/lists/oss-security/2014/08/29/3
- http://www.openwall.com/lists/oss-security/2014/09/02/1
- http://www.securityfocus.com/bid/69472
- https://security.gentoo.org/glsa/201602-02
- https://sourceware.org/bugzilla/show_bug.cgi?id=17325
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=41488498b6
Frequently Asked Questions
What is the severity of CVE-2014-6040?
CVE-2014-6040 has been classified as a denial of service vulnerability that can cause application crashes.
How do I fix CVE-2014-6040?
To fix CVE-2014-6040, update the GNU C Library to version 2.20 or later.
What systems are affected by CVE-2014-6040?
CVE-2014-6040 affects versions of the GNU C Library prior to 2.20, including multiple legacy versions.
What kind of attack does CVE-2014-6040 facilitate?
CVE-2014-6040 allows context-dependent attackers to exploit an out-of-bounds read resulting in a denial of service.
Is CVE-2014-6040 commonly exploited?
While CVE-2014-6040 represents a serious risk, it requires specific conditions to be effectively exploited.
- agent/references
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- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/severity
- agent/weakness
- agent/last-modified-date
- agent/author
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/gnu
- canonical/gnu c library
- version/gnu c library/2.19
- version/gnu c library/2.0
- version/gnu c library/2.0.1
- version/gnu c library/2.0.2
- version/gnu c library/2.0.3
- version/gnu c library/2.0.4
- version/gnu c library/2.0.5
- version/gnu c library/2.0.6
- version/gnu c library/2.1
- version/gnu c library/2.1.1
- version/gnu c library/2.1.1.6
- version/gnu c library/2.1.2
- version/gnu c library/2.1.3
- version/gnu c library/2.1.9
- version/gnu c library/2.10.1
- version/gnu c library/2.11
- version/gnu c library/2.11.1
- version/gnu c library/2.11.2
- version/gnu c library/2.11.3
- version/gnu c library/2.12
- version/gnu c library/2.12.1
- version/gnu c library/2.12.2
- version/gnu c library/2.13
- version/gnu c library/2.14
- version/gnu c library/2.14.1
- version/gnu c library/2.15
- version/gnu c library/2.16
- version/gnu c library/2.17
- version/gnu c library/2.18