glibc: crash in IBM930 decoding
Published Dec 5, 2014
5.0
MEDIUMCVSS 2.0
EPSS 3.44%
Description
iconvdata/ibm930.c in GNU C Library (aka glibc) before 2.16 allows context-dependent attackers to cause a denial of service (out-of-bounds read) via a multibyte character value of "0xffff" to the iconv function when converting IBM930 encoded data to UTF-8.
Affected products
No data.
Configuration 1
- 7.0
Configuration 2
- 10.04
- 12.04
- 14.04
- 14.10
No data.
Red Hat Enterprise Linux 5
glibc
Not affected
Red Hat Enterprise Linux 6
glibc
Not affected
Red Hat Enterprise Linux 7
glibc
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 6 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 7 | glibc | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue does not affect the versions of glibc in Red Hat Enterprise Linux 5, 6, or 7.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.44% (0.03439) | 88.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.44% (0.03439) | 87.39th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.38% (0.01382) | 79.00th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.31% (0.00307) | 70.70th | v3 (v2023.03.01) |
| May 31, 2024 | 0.31% (0.00307) | 69.83th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.33% (0.00334) | 70.40th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.33% (0.00334) | 67.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.26% (0.00260) | 61.92th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
References (13)
- http://www.debian.org/security/2015/dsa-3142 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:175 vendor-advisoryx_refsource_MANDRIVABroken Link
- http://www.openwall.com/lists/oss-security/2014/08/29/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2014/09/02/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/69472 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2432-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2012-6656 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1135840 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-6656
- https://security.gentoo.org/glsa/201503-04 vendor-advisoryx_refsource_GENTOO
- https://sourceware.org/bugzilla/show_bug.cgi?id=14134 x_refsource_CONFIRMExploitIssue Tracking
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=6e230d11837f3ae7b375ea69d7905f0d18eb79e5 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2012-6656
Change history (0)
No recorded changes yet.