DEBIAN-CVE-2018-0495

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Source
https://security-tracker.debian.org/tracker/CVE-2018-0495
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2018-0495.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2018-0495
Upstream
Published
2018-06-13T23:29:00Z
Modified
2025-09-25T22:40:22Z
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

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the gcryeccecdsasign function in cipher/ecc-ecdsa.c, 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.

References

Affected packages

Debian:11 / libgcrypt20

Package

Name
libgcrypt20
Purl
pkg:deb/debian/libgcrypt20?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / libgcrypt20

Package

Name
libgcrypt20
Purl
pkg:deb/debian/libgcrypt20?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / libgcrypt20

Package

Name
libgcrypt20
Purl
pkg:deb/debian/libgcrypt20?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / libgcrypt20

Package

Name
libgcrypt20
Purl
pkg:deb/debian/libgcrypt20?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}