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osvGoogleOSV:USN-6733-2
HistoryApr 29, 2024 - 11:38 a.m.

gnutls28 vulnerabilities

2024-04-2911:38:34
Google
osv.dev
7
gnutls28
ubuntu 24.04 lts
ecdsa operations
timing side-channel
cve-2024-28834
pem bundles
denial of service
cve-2024-28835

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

5.6 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.1%

USN-6733-1 fixed vulnerabilities in GnuTLS. This update provides the
corresponding updates for Ubuntu 24.04 LTS.

Original advisory details:

It was discovered that GnuTLS had a timing side-channel when performing
certain ECDSA operations. A remote attacker could possibly use this issue
to recover sensitive information. (CVE-2024-28834)

It was discovered that GnuTLS incorrectly handled verifying certain PEM
bundles. A remote attacker could possibly use this issue to cause GnuTLS to
crash, resulting in a denial of service. This issue only affected Ubuntu
22.04 LTS and Ubuntu 23.10. (CVE-2024-28835)

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

5.6 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.1%