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redhatcveRedhat.comRH:CVE-2024-28834
HistoryMar 21, 2024 - 6:08 a.m.

CVE-2024-28834

2024-03-2106:08:46
redhat.com
access.redhat.com
20
gnutls
minerva attack
cryptographic vulnerability
side-channel leaks
deterministic behavior
gnutls_privkey_flag_reproducible
timing side-channel
mitigation
red hat product security criteria

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

6.3 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.1%

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.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

6.3 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.1%