CVE-2015-7744

medium

Published 2016-01-22 · Modified 2026-05-06

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CVSS v3

5.9

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.9

Description

wolfSSL (formerly CyaSSL) before 3.6.8 does not properly handle faults associated with the Chinese Remainder Theorem (CRT) process when allowing ephemeral key exchange without low memory optimizations on a server, which makes it easier for remote attackers to obtain private RSA keys by capturing TLS handshakes, aka a Lenstra attack.

Predictions

Exploit likelihood

69%

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.

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OS impact

SUSE Affected 4 releases

Version	Status	Fixed in
42.1	Affected	—
13.2	Affected	—
13.1	Affected	—
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`3.9.10+dfsg-1`
sid	Fixed	`3.9.10+dfsg-1`
forky	Fixed	`3.9.10+dfsg-1`
bullseye	Fixed	`3.9.10+dfsg-1`
bookworm	Fixed	`3.9.10+dfsg-1`

Application impact

Vendor	Product	Versions	Fixed
wolfssl	wolfssl	`{"endExcluding":"3.6.8"}`	`3.6.8`
mariadb	mariadb	`{"startIncluding":"5.5.0","endExcluding":"5.5.46"}`	`5.5.46`
mariadb	mariadb	`{"startIncluding":"10.1.0","endExcluding":"10.1.9"}`	`10.1.9`
mariadb	mariadb	`{"startIncluding":"10.0.0","endExcluding":"10.0.22"}`	`10.0.22`

References

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

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