CVE-2018-12434

Source
https://cve.org/CVERecord?id=CVE-2018-12434
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-12434.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-12434
Downstream
Related
Published
2018-06-15T02:29:00Z
Modified
2026-08-27T08:14:04Z
Severity
  • 4.7 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

LibreSSL before 2.6.5 and 2.7.x before 2.7.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

References

Affected packages

Git / github.com/libressl/portable

Affected ranges

Type
GIT
Repo
https://github.com/libressl/portable
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
Last Affected
Database specific
Show details
{
    "cpe": [
        "cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:openbsd:libressl:2.7.0:*:*:*:*:*:*:*",
        "cpe:2.3:a:openbsd:libressl:2.7.1:*:*:*:*:*:*:*",
        "cpe:2.3:a:openbsd:libressl:2.7.2:*:*:*:*:*:*:*",
        "cpe:2.3:a:openbsd:libressl:2.7.3:*:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.6.5"
        },
        {
            "introduced": "2.7.0"
        },
        {
            "last_affected": "2.7.0"
        },
        {
            "introduced": "2.7.1"
        },
        {
            "last_affected": "2.7.1"
        },
        {
            "introduced": "2.7.2"
        },
        {
            "last_affected": "2.7.2"
        },
        {
            "introduced": "2.7.3"
        },
        {
            "last_affected": "2.7.3"
        }
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ]
}

Affected versions

2.*
2.7.0
2.7.1
2.7.2
2.7.3
v2.*
v2.1.2
v2.1.3
v2.1.4
v2.2.0
v2.2.1
v2.2.2
v2.3.0
v2.3.1
v2.3.2
v2.4.0
v2.4.1
v2.5.0
v2.5.1
v2.5.2
v2.6.0
v2.6.1
v2.6.2
v2.6.3
v2.6.4
v2.7.0
v2.7.1
v2.7.2
v2.7.3

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-12434.json"