CVE-2015-8805
9.8
CRITICAL
CVSS 3.1
EPSS 1.2%
Description
The ecc_256_modq function in ecc-256.c in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-256 NIST elliptic curve, which allows attackers to have unspecified impact via unknown vectors, a different vulnerability than CVE-2015-8803.
How to fix CVE-2015-8805
To remediate CVE-2015-8805, upgrade the affected package to a fixed version below.
- Debian/nettle—upgrade to 3.2-1 or later
Is CVE-2015-8805 being exploited?
Low — EPSS is 1.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.2-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |