VIR Vulnerability Intelligence Relay

CVE-2014-4975

medium
Published 2014-11-15 · Modified 2026-05-06
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
—
CVSS v4 NEW
—
not yet in upstream
VIR risk
5.0

Description

Off-by-one error in the encodes function in pack.c in Ruby 1.9.3 and earlier, and 2.x through 2.1.2, when using certain format string specifiers, allows context-dependent attackers to cause a denial of service (segmentation fault) via vectors that trigger a stack-based buffer overflow.

Predictions

Exploit likelihood
20%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact
OSVersionStatusFixed in
debian debian7.0affected
debian debian8.0affected
ubuntu ubuntu12.04affected
ubuntu ubuntu14.04affected
ubuntu ubuntu14.10affected
redhat rhel7.0affected

Application impact
VendorProductVersionsFixed
ruby ruby-langruby{"endIncluding":"1.9.3"}
ruby ruby-langruby2.0
ruby ruby-langruby2.0.0
ruby ruby-langruby2.1
ruby ruby-langruby2.1.1
ruby ruby-langruby2.1.2

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.