GnuTLS Vulnerability Exposes Timing Side-Channel
CVE-2024-28834

5.3MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.6 Extended Update Support
Red Hat Enterprise Linux 8.8 Extended Update Support
Red Hat Enterprise Linux 9
Vendor
CVE Published:
21 March 2024
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What is CVE-2024-28834?

A flaw was found in GnuTLS. The Minerva attack is a cryptographic vulnerability that exploits deterministic behavior in systems like GnuTLS, leading to side-channel leaks. In specific scenarios, such as when using the GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE flag, it can result in a noticeable step in nonce size from 513 to 512 bits, exposing a potential timing side-channel.

Affected Version(s)

Red Hat Enterprise Linux 8 0:3.6.16-8.el8_9.3

Red Hat Enterprise Linux 8 0:3.6.16-8.el8_9.3

Red Hat Enterprise Linux 8.6 Extended Update Support 0:3.6.16-5.el8_6.4

References

http://www.openwall.com/lists/oss-security/2024/03/22/1
http://www.openwall.com/lists/oss-security/2024/03/22/2
https://access.redhat.com/errata/RHSA-2024:1784
vendor-advisoryx_refsource_REDHAT

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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