Slackware Linux update for gnutls



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-0553
CVE-2024-0567
CWE-ID CWE-208
CWE-617
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Slackware Linux
Operating systems & Components / Operating system

gnutls
Operating systems & Components / Operating system package or component

Vendor Slackware

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU85623

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-0553

CWE-ID: CWE-208 - Information Exposure Through Timing Discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform timing attack.

The vulnerability exists due to the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding. A remote attacker can perform timing sidechannel attack in RSA-PSK key exchange.

Note, the vulnerability exists due to incomplete fox for #VU83316 (CVE-2023-5981).

Mitigation

Update the affected package gnutls.

Vulnerable software versions

Slackware Linux: 15.0

gnutls: before 3.8.3

CPE2.3 External links

https://www.slackware.com/security/viewer.php?l=slackware-security&y=2024&m=slackware-security.354217


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Reachable Assertion

EUVDB-ID: #VU85624

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-0567

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion when verifying a certificate chain with a cycle of cross signatures. A remote attacker can pass a specially crafted certificate to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package gnutls.

Vulnerable software versions

Slackware Linux: 15.0

gnutls: before 3.8.3

CPE2.3 External links

https://www.slackware.com/security/viewer.php?l=slackware-security&y=2024&m=slackware-security.354217


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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