CVE-2024-0553
Published: 16 January 2024
A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS#1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange, potentially leading to the leakage of sensitive data. CVE-2024-0553 is designated as an incomplete resolution for CVE-2023-5981.
Notes
| Author | Note |
|---|---|
| iconstantin | CVE-2023-5981 ignored/fix not applied in xenial. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
gnutls28 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Released
(3.6.13-2ubuntu1.10)
|
|
| jammy |
Released
(3.7.3-4ubuntu1.4)
|
|
| lunar |
Released
(3.7.8-5ubuntu1.2)
|
|
| mantic |
Released
(3.8.1-4ubuntu1.2)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Released
(3.8.3-1)
|
|
| xenial |
Ignored
(see notes)
|
|
|
Patches: upstream: https://gitlab.com/gnutls/gnutls/-/commit/40dbbd8de499668590e8af51a15799fbc430595e |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
References
- https://gnutls.org/security-new.html#GNUTLS-SA-2024-01-14
- https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html
- https://access.redhat.com/security/cve/CVE-2024-0553
- https://ubuntu.com/security/notices/USN-6593-1
- https://www.cve.org/CVERecord?id=CVE-2024-0553
- NVD
- Launchpad
- Debian