CVE-2011-4576

medium

Published 2012-01-06 · Modified 2026-04-29

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

—

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.0

Description

The SSL 3.0 implementation in OpenSSL before 0.9.8s and 1.x before 1.0.0f does not properly initialize data structures for block cipher padding, which might allow remote attackers to obtain sensitive information by decrypting the padding data sent by an SSL peer.

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

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`1.0.0f-1`
sid	Fixed	`1.0.0f-1`
forky	Fixed	`1.0.0f-1`
bullseye	Fixed	`1.0.0f-1`
bookworm	Fixed	`1.0.0f-1`

Application impact

Vendor	Product	Versions
openssl	openssl	`{"endIncluding":"0.9.8r"}`
openssl	openssl	`0.9.1c`
openssl	openssl	`0.9.2b`
openssl	openssl	`0.9.4`
openssl	openssl	`0.9.5`
openssl	openssl	`0.9.5a`
openssl	openssl	`0.9.6`
openssl	openssl	`0.9.6a`
openssl	openssl	`0.9.6b`
openssl	openssl	`0.9.6c`
openssl	openssl	`0.9.6d`
openssl	openssl	`0.9.6e`
openssl	openssl	`0.9.6f`
openssl	openssl	`0.9.6g`
openssl	openssl	`0.9.6h`
openssl	openssl	`0.9.6i`
openssl	openssl	`0.9.6j`
openssl	openssl	`0.9.6k`
openssl	openssl	`0.9.6l`
openssl	openssl	`0.9.6m`
openssl	openssl	`0.9.7`
openssl	openssl	`0.9.7a`
openssl	openssl	`0.9.7b`
openssl	openssl	`0.9.7c`
openssl	openssl	`0.9.7d`
openssl	openssl	`0.9.7e`
openssl	openssl	`0.9.7f`
openssl	openssl	`0.9.7g`
openssl	openssl	`0.9.7h`
openssl	openssl	`0.9.7i`
openssl	openssl	`0.9.7j`
openssl	openssl	`0.9.7k`
openssl	openssl	`0.9.7l`
openssl	openssl	`0.9.7m`
openssl	openssl	`0.9.8`
openssl	openssl	`0.9.8a`
openssl	openssl	`0.9.8b`
openssl	openssl	`0.9.8c`
openssl	openssl	`0.9.8d`
openssl	openssl	`0.9.8e`
openssl	openssl	`0.9.8f`
openssl	openssl	`0.9.8g`
openssl	openssl	`0.9.8h`
openssl	openssl	`0.9.8i`
openssl	openssl	`0.9.8j`
openssl	openssl	`0.9.8k`
openssl	openssl	`0.9.8l`
openssl	openssl	`0.9.8m`
openssl	openssl	`0.9.8n`
openssl	openssl	`0.9.8o`
openssl	openssl	`0.9.8p`
openssl	openssl	`0.9.8q`
openssl	openssl	`1.0.0`
openssl	openssl	`1.0.0a`
openssl	openssl	`1.0.0b`
openssl	openssl	`1.0.0c`
openssl	openssl	`1.0.0d`

References

CWEs

CWE-310

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

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