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CVE-2018-0495 Details

Description

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 _gcry_ecc_ecdsa_sign 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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.7 MEDIUMVector:CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://access.redhat.com/errata/RHSA-2018:3221	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3505	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1296	CVE
https://access.redhat.com/errata/RHSA-2019:1297	CVE
https://access.redhat.com/errata/RHSA-2019:1543	CVE
https://access.redhat.com/errata/RHSA-2019:2237	CVE
https://dev.gnupg.org/T4011	CVE	PatchVendor Advisory
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=9010d1576e278a4274ad3f4aa15776c28f6ba965	CVE
https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html	CVE	Mailing ListThird Party Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html	CVE	Vendor Advisory
https://usn.ubuntu.com/3689-1/	CVE	Third Party Advisory
https://usn.ubuntu.com/3689-2/	CVE	Third Party Advisory
https://usn.ubuntu.com/3692-1/	CVE	Third Party Advisory
https://usn.ubuntu.com/3692-2/	CVE	Third Party Advisory
https://usn.ubuntu.com/3850-1/	CVE	Third Party Advisory
https://usn.ubuntu.com/3850-2/	CVE	Third Party Advisory
https://www.debian.org/security/2018/dsa-4231	CVE	Third Party Advisory
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/	CVE	ExploitThird Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html	CVE	PatchThird Party Advisory
http://www.securitytracker.com/id/1041144	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041147	CVE	Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2018:3221	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3505	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1296	[email protected]
https://access.redhat.com/errata/RHSA-2019:1297	[email protected]
https://access.redhat.com/errata/RHSA-2019:1543	[email protected]
https://access.redhat.com/errata/RHSA-2019:2237	[email protected]
https://dev.gnupg.org/T4011	[email protected]	PatchVendor Advisory
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=9010d1576e278a4274ad3f4aa15776c28f6ba965	[email protected]
https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html	[email protected]	Mailing ListThird Party Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html	[email protected]	Vendor Advisory
https://usn.ubuntu.com/3689-1/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3689-2/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3692-1/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3692-2/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3850-1/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3850-2/	[email protected]	Third Party Advisory
https://www.debian.org/security/2018/dsa-4231	[email protected]	Third Party Advisory
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/	[email protected]	ExploitThird Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html	[email protected]	PatchThird Party Advisory
http://www.securitytracker.com/id/1041144	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041147	[email protected]	Third Party AdvisoryVDB Entry

see all 42 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-203	Observable Discrepancy	[email protected]

Affected Products

Product	Versions
gnupg libgcrypt	< 1.7.10 >= 1.8.0, < 1.8.3
CPE cpe:2.3:a:gnupg:libgcrypt:::::::: Remediation No remediation found in references.
canonical ubuntu linux	12.04 14.04 16.04 17.10 18.04
CPE cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm::: cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:17.10:::::::* cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:18.10:::::::* Remediation No remediation found in references.
debian debian linux	8.0 9.0
CPE cpe:2.3:o:debian:debian_linux:8.0:::::::* cpe:2.3:o:debian:debian_linux:9.0:::::::* Remediation No remediation found in references.
redhat ansible tower	3.3
CPE cpe:2.3:a:redhat:ansible_tower:3.3:::::::* Remediation No remediation found in references.
redhat enterprise linux desktop	7.0
CPE cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux server	7.0
CPE cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux workstation	7.0
CPE cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::* Remediation No remediation found in references.
oracle traffic director	11.1.1.9.0
CPE cpe:2.3:a:oracle:traffic_director:11.1.1.9.0:::::::* Remediation No remediation found in references.

Change History

21 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Aug 24, 2020	CWE Remap	[email protected]
Aug 6, 2019	CVE Modified	[email protected]
Jun 18, 2019	CVE Modified	[email protected]
May 30, 2019	CVE Modified	[email protected]
May 2, 2019	Modified Analysis	[email protected]
Apr 23, 2019	CVE Modified	[email protected]
Mar 5, 2019	Modified Analysis	[email protected]
Feb 19, 2019	CVE Modified	[email protected]
Jan 10, 2019	CVE Modified	[email protected]
Nov 7, 2018	CVE Modified	[email protected]
Oct 31, 2018	CVE Modified	[email protected]
Aug 10, 2018	Initial Analysis	[email protected]
Jun 30, 2018	CVE Modified	[email protected]
Jun 28, 2018	CVE Modified	[email protected]
Jun 24, 2018	CVE Modified	[email protected]
Jun 21, 2018	CVE Modified	[email protected]
Jun 19, 2018	CVE Modified	[email protected]

CVE-2018-0495 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

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Change History

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