CVE-2012-3405: canonical ubuntu_linux Numeric Errors
Vulnerability summary
CVE-2012-3405 is a medium (CVSS 5.0) Numeric Errors vulnerability in canonical ubuntu_linux. EPSS estimates a 2.09% chance of exploitation in the next 30 days, higher than 81.6% of scored vulnerabilities.
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 3Timeline
- 10-02-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The vfprintf function in stdio-common/vfprintf.c in libc in GNU C Library (aka glibc) 2.14 and other versions does not properly calculate a buffer length, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (segmentation fault and crash) via a format string with a large number of format specifiers that triggers "desynchronization within the buffer size handling," a different vulnerability than CVE-2012-3404.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
2.09%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.09% 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
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Redhat2 products
Canonical1 product
- ubuntu_linuxEOL8.04 | 10.04 | 11.04 | 11.10 | 12.04
Debian1 product
- glibc< 2.13-35
Gnu1 product
- glibc2.14
4 vendors · 5 products
References
8 links- bugzilla.redhat.com/show_bug.cgi?id=833704X Refsource CONFIRM
- sourceware.org/bugzilla/show_bug.cgi?id=13446X Refsource CONFIRM
