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CVE-2018-0495
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
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..
CVSSv2.0 Score
- Severity
- Low
- Base Score
- 1.9/10
- Exploit Score
- 3.4/10
- Access Vector
- Local
- Access Complexity
- Medium
- Authentication Required
- None
- Impact Score
- 2.9/10
- Confidentiality Impact
- Partial
- Availability Impact
- None
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- Medium
- Base Score
- 4.7/10
- Exploit Score
- 1/10
- Access Vector
- Local
- Access Complexity
- High
- Privileges Required
- Low
- Impact Score
- 3.6/10
- Confidentiality Impact
- High
- Availability Impact
- None
- Integrity Impact
- None
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:* |
Yes
|
- | 1.7.10 | |
cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:* |
Yes
|
1.8.0 | 1.8.3 | |
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*: |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:redhat:ansible_tower:3.3:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:oracle:traffic_director:11.1.1.9.0:*:*:*:*:*:*:* |
Yes
|
- | - |
References
- https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-numbe
- https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html
- https://dev.gnupg.org/T4011
- https://www.debian.org/security/2018/dsa-4231
- https://usn.ubuntu.com/3689-2/
- https://usn.ubuntu.com/3689-1/
- http://www.securitytracker.com/id/1041147
- http://www.securitytracker.com/id/1041144
- https://usn.ubuntu.com/3692-2/
- https://usn.ubuntu.com/3692-1/
- https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html
- https://access.redhat.com/errata/RHSA-2018:3221
- https://access.redhat.com/errata/RHSA-2018:3505
- https://usn.ubuntu.com/3850-1/
- https://usn.ubuntu.com/3850-2/
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://access.redhat.com/errata/RHSA-2019:1297
- https://access.redhat.com/errata/RHSA-2019:1296
- https://access.redhat.com/errata/RHSA-2019:1543
- https://access.redhat.com/errata/RHSA-2019:2237
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=9010d1576e278a42