CVE-2012-3405: n/a vulnerability

CVE-2012-3405: The vfprintf function in stdio-common/vfprintf.c in libc in GNU C Library (aka glibc) 2.14 and other versio...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 20:05 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2012-3405 is an old GNU C Library formatting bug that can crash affected programs in specific conditions. The issue is in glibc's vfprintf handling and can bypass FORTIFY_SOURCE format-string protection, leading to denial of service rather than confirmed code execution. Exposure is most likely on legacy Linux systems using vulnerable glibc versions, including glibc 2.14 and distribution builds covered by Red Hat, Ubuntu, and Gentoo advisories. Risk depends on whether applications process attacker-controlled format strings. Treat this as a legacy hygiene and availability risk. It does not show confirmed active exploitation in the supplied sources, but glibc is foundational, so unsupported or unpatched Linux estates should be remediated deliberately. Mitigation focus: Apply the relevant vendor glibc security update for each Linux distribution.; Inventory systems for vulnerable or unsupported glibc packages.; Prioritize internet-facing and multi-tenant services processing untrusted text..

Prepared: Jun 14, 2026, 14:50 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 10, 2014, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.redhat.com/show_bug.cgi?id=833704CVE reference · x_refsource_CONFIRM
https://sourceware.org/bugzilla/show_bug.cgi?id=13446CVE reference · x_refsource_CONFIRM
GLSA-201503-04CVE reference · vendor-advisory, x_refsource_GENTOO

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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