CVE-2015-3193
7.5
HIGH
CVSS 3.1
EPSS 27.5%
Description
The Montgomery squaring implementation in crypto/bn/asm/x86_64-mont5.pl in OpenSSL 1.0.2 before 1.0.2e on the x86_64 platform, as used by the BN_mod_exp function, mishandles carry propagation and produces incorrect output, which makes it easier for remote attackers to obtain sensitive private-key information via an attack against use of a (1) Diffie-Hellman (DH) or (2) Diffie-Hellman Ephemeral (DHE) ciphersuite.
How to fix CVE-2015-3193
To remediate CVE-2015-3193, upgrade the affected package to a fixed version below.
- —upgrade to 1.0.2e-1 or later
Is CVE-2015-3193 being exploited?
Moderate — EPSS is 27.5%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 1.0.2e-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |