CVE-2016-7440

medium

Published 2016-12-13 · Modified 2026-05-06

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

5.5

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.5

Description

The C software implementation of AES Encryption and Decryption in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to discover AES keys by leveraging cache-bank timing differences.

Predictions

Exploit likelihood

55%

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

OS	Version	Status	Fixed in
sles		affected
debian	8.0	affected
debian	bookworm	fixed	`3.9.10+dfsg-1`
debian	bullseye	fixed	`3.9.10+dfsg-1`
debian	forky	fixed	`3.9.10+dfsg-1`
debian	sid	fixed	`3.9.10+dfsg-1`
debian	trixie	fixed	`3.9.10+dfsg-1`

Application impact

Vendor	Product	Versions	Fixed
mariadb	mariadb	`{"startIncluding":"5.5.0","endExcluding":"5.5.53"}`	`5.5.53`
oracle	mysql	`{"startIncluding":"5.5.0","endIncluding":"5.5.52"}`
wolfssl	wolfssl	`{"endExcluding":"3.9.10"}`	`3.9.10`
mariadb	mariadb	`{"startIncluding":"10.0.0","endExcluding":"10.0.28"}`	`10.0.28`
mariadb	mariadb	`{"startIncluding":"10.1.0","endExcluding":"10.1.19"}`	`10.1.19`
oracle	mysql	`{"startIncluding":"5.6.0","endIncluding":"5.6.33"}`
oracle	mysql	`{"startIncluding":"5.7.0","endIncluding":"5.7.15"}`

References

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

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