CVE-2023-5981

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-5981
A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.

5.9 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://access.redhat.com/errata/RHSA-2024:0155 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0319 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0399 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0451 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0533 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1383 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2094 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-5981 Vendor Advisory Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2248445 Issue Tracking Third Party Advisory
https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 Issue Tracking Vendor Advisory
http://www.openwall.com/lists/oss-security/2024/01/19/3 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0155 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0319 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0399 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0451 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0533 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1383 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2094 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-5981 Vendor Advisory Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2248445 Issue Tracking Third Party Advisory
https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 Issue Tracking Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/11/msg00016.html Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/ Broken Link
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/ Broken Link
Configurations

Configuration 1 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:redhat:linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:linux:9.0:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
History

25 Mar 2026, 20:01

Type Values Removed Values Added
References () https://access.redhat.com/errata/RHSA-2024:0155 - () https://access.redhat.com/errata/RHSA-2024:0155 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2024:0319 - () https://access.redhat.com/errata/RHSA-2024:0319 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2024:0399 - () https://access.redhat.com/errata/RHSA-2024:0399 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2024:0451 - () https://access.redhat.com/errata/RHSA-2024:0451 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2024:0533 - () https://access.redhat.com/errata/RHSA-2024:0533 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2024:1383 - () https://access.redhat.com/errata/RHSA-2024:1383 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2024:2094 - () https://access.redhat.com/errata/RHSA-2024:2094 - Third Party Advisory
References () https://access.redhat.com/security/cve/CVE-2023-5981 - Vendor Advisory () https://access.redhat.com/security/cve/CVE-2023-5981 - Vendor Advisory, Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2024/01/19/3 - () http://www.openwall.com/lists/oss-security/2024/01/19/3 - Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2023/11/msg00016.html - () https://lists.debian.org/debian-lts-announce/2023/11/msg00016.html - Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/ - () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/ - Broken Link
References () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/ - () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/ - Broken Link
CPE cpe:2.3:a:gnu:gnutls:1.5.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*
First Time Debian debian Linux
Debian

25 Feb 2026, 19:29

Type Values Removed Values Added
CWE CWE-208

04 Nov 2025, 20:17

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2023/11/msg00016.html -

21 Nov 2024, 08:42

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2024/01/19/3 -
  • () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/ -
  • () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/ -
References () https://access.redhat.com/errata/RHSA-2024:0155 - () https://access.redhat.com/errata/RHSA-2024:0155 -
References () https://access.redhat.com/errata/RHSA-2024:0319 - () https://access.redhat.com/errata/RHSA-2024:0319 -
References () https://access.redhat.com/errata/RHSA-2024:0399 - () https://access.redhat.com/errata/RHSA-2024:0399 -
References () https://access.redhat.com/errata/RHSA-2024:0451 - () https://access.redhat.com/errata/RHSA-2024:0451 -
References () https://access.redhat.com/errata/RHSA-2024:0533 - () https://access.redhat.com/errata/RHSA-2024:0533 -
References () https://access.redhat.com/errata/RHSA-2024:1383 - () https://access.redhat.com/errata/RHSA-2024:1383 -
References () https://access.redhat.com/errata/RHSA-2024:2094 - () https://access.redhat.com/errata/RHSA-2024:2094 -
References () https://access.redhat.com/security/cve/CVE-2023-5981 - Vendor Advisory () https://access.redhat.com/security/cve/CVE-2023-5981 - Vendor Advisory
References () https://bugzilla.redhat.com/show_bug.cgi?id=2248445 - Issue Tracking, Third Party Advisory () https://bugzilla.redhat.com/show_bug.cgi?id=2248445 - Issue Tracking, Third Party Advisory
References () https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 - Issue Tracking, Vendor Advisory () https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 - Issue Tracking, Vendor Advisory

16 Sep 2024, 13:15

Type Values Removed Values Added
References
  • {'url': 'http://www.openwall.com/lists/oss-security/2024/01/19/3', 'source': 'secalert@redhat.com'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/', 'source': 'secalert@redhat.com'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/', 'source': 'secalert@redhat.com'}

08 Jul 2024, 18:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2024:2094 -

27 Jun 2024, 12:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2024:1383 -

09 Feb 2024, 03:15

Type Values Removed Values Added
References
  • () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/ -

29 Jan 2024, 16:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2024:0533 -

29 Jan 2024, 07:15

Type Values Removed Values Added
References
  • () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/ -

25 Jan 2024, 18:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2024:0399 -
  • () https://access.redhat.com/errata/RHSA-2024:0451 -

22 Jan 2024, 15:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2024:0319 -

19 Jan 2024, 21:15

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2024/01/19/3 -

10 Jan 2024, 21:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2024:0155 -

04 Dec 2023, 19:40

Type Values Removed Values Added
CWE CWE-203
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.9
CPE cpe:2.3:o:redhat:linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:redhat:linux:9.0:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:1.5.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
First Time Gnu
Redhat
Gnu gnutls
Redhat linux
Fedoraproject
Fedoraproject fedora
References () https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 - () https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 - Issue Tracking, Vendor Advisory
References () https://access.redhat.com/security/cve/CVE-2023-5981 - () https://access.redhat.com/security/cve/CVE-2023-5981 - Vendor Advisory
References () https://bugzilla.redhat.com/show_bug.cgi?id=2248445 - () https://bugzilla.redhat.com/show_bug.cgi?id=2248445 - Issue Tracking, Third Party Advisory

28 Nov 2023, 14:15

Type Values Removed Values Added
References
  • () https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 -

28 Nov 2023, 12:15

Type Values Removed Values Added
New CVE
Information

Published : 2023-11-28 12:15

Updated : 2026-03-25 20:01

NVD link : CVE-2023-5981

Mitre link : CVE-2023-5981

CVE.ORG link : CVE-2023-5981

JSON object : View

Products Affected

debian

  • debian_linux

fedoraproject

  • fedora

gnu

  • gnutls

redhat

  • linux
CWE
CWE-208

Observable Timing Discrepancy

CWE-203

Observable Discrepancy