CVE-2023-5981
Gnutls: timing side-channel in the rsa-psk authentication
02 Description
Gnutls: timing side-channel in the rsa-psk authentication
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
- 1.26% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 69.3% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-14.
- 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
- 2023-11-28 11:49Z2 YR AGO
- Last updated
- 2026-10-14 22:07Z14 DAYS AGO
- Reserved
- 2023-11-07
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.9)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- Data version
- 5.2
- Document digest
- 29b0c73628fb42eae84457b018b9aa341269356f67dcf6ee79de6376f521d632
05 Affected products
06 References
- access.redhat.comRHSA-2024:0155https://access.redhat.com/errata/RHSA-2024:0155
- access.redhat.comRHSA-2024:0319https://access.redhat.com/errata/RHSA-2024:0319
- access.redhat.comRHSA-2024:0399https://access.redhat.com/errata/RHSA-2024:0399
- access.redhat.comRHSA-2024:0451https://access.redhat.com/errata/RHSA-2024:0451
- access.redhat.comRHSA-2024:0533https://access.redhat.com/errata/RHSA-2024:0533
- access.redhat.comRHSA-2024:1383https://access.redhat.com/errata/RHSA-2024:1383
- access.redhat.comRHSA-2024:2094https://access.redhat.com/errata/RHSA-2024:2094
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-5981
- bugzilla.redhat.comRHBZ#2248445https://bugzilla.redhat.com/show_bug.cgi?id=2248445
- gnutls.orghttps://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/01/19/3
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/11/msg00016.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html
07 Fixed in
AlmaLinux 8
- gnutls Fixed
A version is affected if any line below covers it.
- Affected before 3.6.16-8.el8_9
- Affected before 3.6.16-8.el8_9.1
- gnutls-c++ Fixed
A version is affected if any line below covers it.
- Affected before 3.6.16-8.el8_9
- Affected before 3.6.16-8.el8_9.1
- gnutls-dane Fixed
A version is affected if any line below covers it.
- Affected before 3.6.16-8.el8_9
- Affected before 3.6.16-8.el8_9.1
- gnutls-devel Fixed
A version is affected if any line below covers it.
- Affected before 3.6.16-8.el8_9
- Affected before 3.6.16-8.el8_9.1
- gnutls-utils Fixed
A version is affected if any line below covers it.
- Affected before 3.6.16-8.el8_9
- Affected before 3.6.16-8.el8_9.1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- gnutls Fixed in 3.7.6-23.el9_3.3
- gnutls-c++ Fixed in 3.7.6-23.el9_3.3
- gnutls-dane Fixed in 3.7.6-23.el9_3.3
- gnutls-devel Fixed in 3.7.6-23.el9_3.3
- gnutls-utils Fixed in 3.7.6-23.el9_3.3
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- gnutls Fixed
A version is affected if any line below covers it.
- Affected before 3.6.16-8.el8_9
- Affected before 3.6.16-8.el8_9.1
- gnutls-c++ Fixed
A version is affected if any line below covers it.
- Affected before 3.6.16-8.el8_9
- Affected before 3.6.16-8.el8_9.1
- gnutls-dane Fixed
A version is affected if any line below covers it.
- Affected before 3.6.16-8.el8_9
- Affected before 3.6.16-8.el8_9.1
- gnutls-devel Fixed
A version is affected if any line below covers it.
- Affected before 3.6.16-8.el8_9
- Affected before 3.6.16-8.el8_9.1
- gnutls-utils Fixed
A version is affected if any line below covers it.
- Affected before 3.6.16-8.el8_9
- Affected before 3.6.16-8.el8_9.1
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- gnutls Fixed in 3.7.6-23.el9_3.3
- gnutls-c++ Fixed in 3.7.6-23.el9_3.3
- gnutls-dane Fixed in 3.7.6-23.el9_3.3
- gnutls-devel Fixed in 3.7.6-23.el9_3.3
- gnutls-utils Fixed in 3.7.6-23.el9_3.3
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- gnutls28 Fixed in 3.7.9-2+deb12u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- gnutls28 Fixed in 3.8.2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- gnutls28 Fixed in 3.8.2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- gnutls28 Fixed in 3.6.13-2ubuntu1.9
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- gnutls28 Fixed in 3.7.3-4ubuntu1.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- gnutls28 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- gnutls28 Fixed in 3.5.18-1ubuntu1.6+esm1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
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.