CVE-2014-6040: gnu glibc
Vulnerability summary
CVE-2014-6040 is a medium (CVSS 5.0) vulnerability in gnu glibc. EPSS estimates a 6.56% chance of exploitation in the next 30 days, higher than 93.8% of scored vulnerabilities. 2 public exploits are recorded.
Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 2Timeline
- 05-12-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
6.56%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
No change 0.00 pp
From 6.56% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
2 foundExploit Reference (sourceware.org)
Maturity: unknown
Exploit Reference (openwall.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- glibc< 2.19-12
Gnu1 product
- glibc≤ 2.19 | 2.0 | 2.0.1 | 2.0.2 | 2.0.3 | 2.0.4 | 2.0.5 | 2.0.6 | 2.1 | 2.11 | 2.1.1.6 | 2.12 | 2.13 | 2.19 | 2.10.1 | 2.11.1 | 2.11.2 | 2.11.3 | 2.12.1 | 2.12.2 | 2.14 | 2.14.1 | 2.15 | 2.16 | 2.17 | 2.18
Ubuntu1 product
- eglibc< 2.19-0ubuntu6.4
3 vendors · 3 products
References
17 links- linux.oracle.com/errata/ELSA-2015-0016.htmlX Refsource CONFIRM
- sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=41488498b6X Refsource CONFIRM
