SUSE update for gnutls

1) Inadequate Encryption Strength

EUVDB-ID: #VU72125

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-0361

CWE-ID: CWE-326 - Inadequate Encryption Strength

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error in the TLS RSA key exchange. A remote attacker can perform Bleichenbacher oracle attack and decrypt information.

Mitigation

Update the affected package gnutls to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro for Rancher: 5.3

SUSE Linux Enterprise Micro: 5.3

libgnutls30-debuginfo: before 3.7.3-150400.1.3.1

libgnutls30: before 3.7.3-150400.1.3.1

gnutls: before 3.7.3-150400.1.3.1

gnutls-debugsource: before 3.7.3-150400.1.3.1

libgnutls30-hmac: before 3.7.3-150400.1.3.1

gnutls-debuginfo: before 3.7.3-150400.1.3.1

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241179-1/

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) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU83316

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5981

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.

Mitigation

Update the affected package gnutls to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro for Rancher: 5.3

SUSE Linux Enterprise Micro: 5.3

libgnutls30-debuginfo: before 3.7.3-150400.1.3.1

libgnutls30: before 3.7.3-150400.1.3.1

gnutls: before 3.7.3-150400.1.3.1

gnutls-debugsource: before 3.7.3-150400.1.3.1

libgnutls30-hmac: before 3.7.3-150400.1.3.1

gnutls-debuginfo: before 3.7.3-150400.1.3.1

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241179-1/

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.

3) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU85623

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

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 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro for Rancher: 5.3

SUSE Linux Enterprise Micro: 5.3

libgnutls30-debuginfo: before 3.7.3-150400.1.3.1

libgnutls30: before 3.7.3-150400.1.3.1

gnutls: before 3.7.3-150400.1.3.1

gnutls-debugsource: before 3.7.3-150400.1.3.1

libgnutls30-hmac: before 3.7.3-150400.1.3.1

gnutls-debuginfo: before 3.7.3-150400.1.3.1

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241179-1/

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.

4) Reachable Assertion

EUVDB-ID: #VU85624

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

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 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro for Rancher: 5.3

SUSE Linux Enterprise Micro: 5.3

libgnutls30-debuginfo: before 3.7.3-150400.1.3.1

libgnutls30: before 3.7.3-150400.1.3.1

gnutls: before 3.7.3-150400.1.3.1

gnutls-debugsource: before 3.7.3-150400.1.3.1

libgnutls30-hmac: before 3.7.3-150400.1.3.1

gnutls-debuginfo: before 3.7.3-150400.1.3.1

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241179-1/

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.