Description
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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected products
- fedoraproject / fedora39 – 39
- gnu / gnutls3.8.3
- RedHat / enterprise_linux8.0 – 8.0
- RedHat / enterprise_linux9.0 – 9.0
References
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2024:0533
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2024:0627
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2024:0796
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2024:1082
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2024:1108
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2024:1383
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2024:2094
- VENDOR_ADVISORYhttps://access.redhat.com/security/cve/CVE-2024-0553
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2258412
- MISChttps://gitlab.com/gnutls/gnutls/-/issues/1522
- MAILING_LISThttps://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html
Updated 44m ago · 8 sources