CVE-2023-5981
Published: November 18, 2023Last modified: September 30, 2025
Description
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.9 |
| Attack Vector | NETWORK |
| Attack complexity | HIGH |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | gnutls | Fixed (3.7.8-r4) |
| Stream | gnutls | Fixed (3.8.3-r0) |
References
- http://www.openwall.com/lists/oss-security/2024/01/19/3
- https://access.redhat.com/errata/RHSA-2024:0155
- https://access.redhat.com/errata/RHSA-2024:0319
- https://access.redhat.com/errata/RHSA-2024:0399
- https://access.redhat.com/errata/RHSA-2024:0451
- https://access.redhat.com/errata/RHSA-2024:0533
- https://access.redhat.com/errata/RHSA-2024:1383
- https://access.redhat.com/errata/RHSA-2024:2094
- https://access.redhat.com/security/cve/CVE-2023-5981
- https://bugzilla.redhat.com/show_bug.cgi?id=2248445
- https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23
- https://lists.fedoraproject.org/archives/list/[email protected]/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/