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osvGoogleOSV:CVE-2024-28834
HistoryMar 21, 2024 - 2:15 p.m.

CVE-2024-28834

2024-03-2114:15:07
Google
osv.dev
5
gnutls minerva attack
cve-2024-28834
cryptographic vulnerability
deterministic behavior
side-channel leaks
gnutls_privkey_flag_reproducible
nonce size
timing side-channel
software

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

6.9 Medium

AI Score

Confidence

Low

0.0005 Low

EPSS

Percentile

17.2%

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.

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

6.9 Medium

AI Score

Confidence

Low

0.0005 Low

EPSS

Percentile

17.2%