Ubuntu update for openssl
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2022-3996 CVE-2023-0464 CVE-2023-0465 CVE-2023-0466 |
| CWE-ID | CWE-667 CWE-400 CWE-347 CWE-254 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Ubuntu Operating systems & Components / Operating system libssl1.1 (Ubuntu package) Operating systems & Components / Operating system package or component libssl3 (Ubuntu package) Operating systems & Components / Operating system package or component libssl-doc (Ubuntu package) Operating systems & Components / Operating system package or component openssl (Ubuntu package) Operating systems & Components / Operating system package or component openssl1.0 (Ubuntu package) Operating systems & Components / Operating system package or component libssl1.0.0 (Ubuntu package) Operating systems & Components / Operating system package or component |
| Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Improper locking
EUVDB-ID: #VU70142
Risk: Low
CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-3996
CWE-ID:
CWE-667 - Improper Locking
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service attack (DoS).
The vulnerability exists due to double-locking error if an X.509 certificate contains a malformed policy constraint and policy processing is enabled. A remote attacker can under certain circumstances perform a denial of service attack against the web server.
Successful exploitation of the vulnerability requires that policy processing being enabled on the server.
Update the affected package openssl to the latest version.
Vulnerable software versionsUbuntu: 14.04 - 23.04
libssl1.1 (Ubuntu package): before 1.1.1f-1ubuntu2.18
libssl3 (Ubuntu package): before 3.0.2-0ubuntu1.9
libssl-doc (Ubuntu package): before Ubuntu Pro
openssl (Ubuntu package): before Ubuntu Pro
openssl1.0 (Ubuntu package): before 1.0.2n-1ubuntu5.12
libssl1.0.0 (Ubuntu package): before Ubuntu Pro
CPE2.3- cpe:2.3:o:canonical:ubuntu:14.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:22.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:22.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:23.04:*:*:*:*:*:*:*
- cpe:2.3:a:canonical:libssl1.1_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl3_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl-doc_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:openssl_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:openssl10_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl1.0.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
https://ubuntu.com/security/notices/USN-6039-1
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) Resource exhaustion
EUVDB-ID: #VU73960
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-2023-0464
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when verifying X.509 certificate chains that include policy constraints. A remote attacker can create a specially crafted certificate to trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationUpdate the affected package openssl to the latest version.
Vulnerable software versionsUbuntu: 14.04 - 23.04
libssl1.1 (Ubuntu package): before 1.1.1f-1ubuntu2.18
libssl3 (Ubuntu package): before 3.0.2-0ubuntu1.9
libssl-doc (Ubuntu package): before Ubuntu Pro
openssl (Ubuntu package): before Ubuntu Pro
openssl1.0 (Ubuntu package): before 1.0.2n-1ubuntu5.12
libssl1.0.0 (Ubuntu package): before Ubuntu Pro
CPE2.3- cpe:2.3:o:canonical:ubuntu:14.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:22.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:22.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:23.04:*:*:*:*:*:*:*
- cpe:2.3:a:canonical:libssl1.1_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl3_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl-doc_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:openssl_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:openssl10_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl1.0.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
https://ubuntu.com/security/notices/USN-6039-1
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) Improper Verification of Cryptographic Signature
EUVDB-ID: #VU74148
Risk: Low
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:Clear]
CVE-ID: CVE-2023-0465
CWE-ID:
CWE-347 - Improper Verification of Cryptographic Signature
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to an error when validating certificate policies in leaf certificates. A remote attacker that controls a malicious CA server can issue a certificate that will be validated by the application.
Update the affected package openssl to the latest version.
Vulnerable software versionsUbuntu: 14.04 - 23.04
libssl1.1 (Ubuntu package): before 1.1.1f-1ubuntu2.18
libssl3 (Ubuntu package): before 3.0.2-0ubuntu1.9
libssl-doc (Ubuntu package): before Ubuntu Pro
openssl (Ubuntu package): before Ubuntu Pro
openssl1.0 (Ubuntu package): before 1.0.2n-1ubuntu5.12
libssl1.0.0 (Ubuntu package): before Ubuntu Pro
CPE2.3- cpe:2.3:o:canonical:ubuntu:14.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:22.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:22.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:23.04:*:*:*:*:*:*:*
- cpe:2.3:a:canonical:libssl1.1_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl3_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl-doc_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:openssl_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:openssl10_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl1.0.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
https://ubuntu.com/security/notices/USN-6039-1
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) Security features bypass
EUVDB-ID: #VU74149
Risk: Low
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:Clear]
CVE-ID: CVE-2023-0466
CWE-ID:
CWE-254 - Security Features
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to an error within the X509_VERIFY_PARAM_add0_policy() function, which does not perform the certificate policy check despite being implicitly enabled. A remote attacker can bypass expected security restrictions and perform MitM attack.
Update the affected package openssl to the latest version.
Vulnerable software versionsUbuntu: 14.04 - 23.04
libssl1.1 (Ubuntu package): before 1.1.1f-1ubuntu2.18
libssl3 (Ubuntu package): before 3.0.2-0ubuntu1.9
libssl-doc (Ubuntu package): before Ubuntu Pro
openssl (Ubuntu package): before Ubuntu Pro
openssl1.0 (Ubuntu package): before 1.0.2n-1ubuntu5.12
libssl1.0.0 (Ubuntu package): before Ubuntu Pro
CPE2.3- cpe:2.3:o:canonical:ubuntu:14.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:22.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:22.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:23.04:*:*:*:*:*:*:*
- cpe:2.3:a:canonical:libssl1.1_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl3_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl-doc_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:openssl_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:openssl10_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:a:canonical:libssl1.0.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
https://ubuntu.com/security/notices/USN-6039-1
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.
