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CVE-2018-12438

Publication date 15 June 2018

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

4.9 · Medium

Score breakdown

The Elliptic Curve Cryptography library (aka sunec or libsunec) allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

Read the notes from the security team

Status

Package Ubuntu Release Status
openjdk-7 22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
openjdk-8 22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
openjdk-lts 22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

Notes

mdeslaur

Ubuntu packages don't contain the SunEC Security Provider

Severity score breakdown

Parameter Value
Base score 4.9 · Medium
Attack vector Physical
Attack complexity High
Privileges required None
User interaction None
Scope Changed
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N