glibc: crash in code page decoding functions (IBM933, IBM935, IBM937, IBM939, IBM1364)
Published Dec 5, 2014
5.0
MEDIUMCVSS 2.0
EPSS 6.56%
Description
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.
Affected products
No data.
- ≤ 2.19
- 2.0
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.4
- 2.0.5
- 2.0.6
- 2.1
- 2.1.1
- 2.1.1.6
- 2.1.2
- 2.1.3
- 2.1.9
- 2.10.1
- 2.11
- 2.11.1
- 2.11.2
- 2.11.3
- 2.12
- 2.12.1
- 2.12.2
- 2.13
- 2.14
- 2.14.1
- 2.15
- 2.16
- 2.17
- 2.18
No data.
Red Hat Enterprise Linux 6
glibc-0:2.12-1.149.el6_6.4
Fixed · RHSA-2015:0016
Red Hat Enterprise Linux 7
glibc-0:2.17-78.el7
Fixed · RHSA-2015:0327
Red Hat Enterprise Linux 5
glibc
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | glibc-0:2.12-1.149.el6_6.4 | Fixed | RHSA-2015:0016 |
| Red Hat Enterprise Linux 7 | glibc-0:2.17-78.el7 | Fixed | RHSA-2015:0327 |
| Red Hat Enterprise Linux 5 | glibc | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the version of glibc package as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Extended Life Cycle phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata
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 2, 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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 6.56% (0.06564) | 93.62th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.56% (0.06564) | 92.93th | v5 (v2026.06.15) |
| Mar 30, 2025 | 7.19% (0.07187) | 90.73th | v4 (v2025.03.14) |
| Mar 29, 2025 | 20.45% (0.20448) | 92.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 7.19% (0.07187) | 90.93th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.50% (0.01497) | 87.41th | v3 (v2023.03.01) |
| Jul 17, 2024 | 1.50% (0.01497) | 87.03th | v3 (v2023.03.01) |
| May 31, 2024 | 1.69% (0.01693) | 87.72th | v3 (v2023.03.01) |
| Dec 30, 2023 | 1.57% (0.01566) | 85.84th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.98% (0.01976) | 86.94th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.54% (0.01537) | 74.00th | v2 (v2022.01.01) |
| Feb 3, 2023 | 2.69% (0.02686) | 82.44th | 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 (16)
- http://linux.oracle.com/errata/ELSA-2015-0016.html x_refsource_CONFIRM
- http://secunia.com/advisories/62100 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/62146 third-party-advisoryx_refsource_SECUNIA
- http://ubuntu.com/usn/usn-2432-1 vendor-advisoryx_refsource_UBUNTUPatchVendor Advisory
- http://www.debian.org/security/2015/dsa-3142 vendor-advisoryx_refsource_DEBIANVendor Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:175 vendor-advisoryx_refsource_MANDRIVA
- http://www.openwall.com/lists/oss-security/2014/08/29/3 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2014/09/02/1 mailing-listx_refsource_MLISTExploit
- http://www.securityfocus.com/bid/69472 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2014-6040 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1135841 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2014-6040
- https://security.gentoo.org/glsa/201602-02 vendor-advisoryx_refsource_GENTOO
- https://sourceware.org/bugzilla/show_bug.cgi?id=17325 x_refsource_CONFIRMExploit
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=41488498b6 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2014-6040
Change history (0)
No recorded changes yet.