CVE-2018-10846
A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in
02 Description
A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.38% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 32.6% of scored records. A rank, not a probability.
- NVD base score
- 5.6 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-08-22 13:00Z8 YR AGO
- Last updated
- 2024-08-05 07:46Z2 YR AGO
- Reserved
- 2018-05-09
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
- Weaknesses
- Data version
- 5.1
- Document digest
- e4a67c965d1162ba90d031bb2ecaf3864f83b5a5cbde34d70f90f387a4beb145
05 Affected products
06 References
- eprint.iacr.orghttps://eprint.iacr.org/2018/747
- gitlab.comhttps://gitlab.com/gnutls/gnutls/merge_requests/657
- access.redhat.comRHSA-2018:3505https://access.redhat.com/errata/RHSA-2018:3505
- www.securityfocus.com105138http://www.securityfocus.com/bid/105138
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10846
- access.redhat.comRHSA-2018:3050https://access.redhat.com/errata/RHSA-2018:3050
- lists.debian.org[debian-lts-announce] 20181030 [SECURITY] [DLA 1560-1] gnutls28 security updatehttps://lists.debian.org/debian-lts-announce/2018/10/msg00022.html
- usn.ubuntu.comUSN-3999-1https://usn.ubuntu.com/3999-1/
- lists.fedoraproject.orgFEDORA-2020-f90fb78f70https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/
- lists.fedoraproject.orgFEDORA-2020-d14280a6e8https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/
07 Fixed in
Debian 12
- gnutls28 Fixed in 3.5.19-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- gnutls28 Fixed in 3.5.19-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- gnutls28 Fixed in 3.5.19-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- gnutls28 Fixed in 3.4.10-4ubuntu1.5
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- gnutls28 Fixed in 3.5.18-1ubuntu1.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- gnutls26 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.