CVE-2018-0497
mbedtls - security update
5.9
MEDIUM
CVSS 3.1
EPSS 0.31%
Description
ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. This vulnerability exists because of an incorrect fix (with a wrong SHA-384 calculation) for CVE-2013-0169.
How to fix CVE-2018-0497
To remediate CVE-2018-0497, upgrade the affected package to a fixed version below.
- —upgrade to 2.12.0-r0 or later
- —upgrade to 2.12.0-1 or later
- —upgrade to 2.4.2-1+deb9u3 or later
- —upgrade to 1.3.9-2.1+deb8u4 or later
Is CVE-2018-0497 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 2.12.0-r0
- from 0, < 2.12.0-1
- from 0, < 2.4.2-1+deb9u3
- from 0, < 1.3.9-2.1+deb8u4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |