SUSE update for python-cryptography

1) NULL pointer dereference

EUVDB-ID: #VU83930

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-2023-49083

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error when calling the load_pem_pkcs7_certificates() or load_der_pkcs7_certificates() functions. A remote attacker can pass specially crafted PKCS7 blob/certificate certificate to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package python-cryptography to the latest version.

Vulnerable software versions

Public Cloud Module: 15-SP1

SUSE Linux Enterprise Server for SAP Applications 15: SP1

SUSE Linux Enterprise Server 15: SP1

SUSE Linux Enterprise High Performance Computing 15: SP1

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

python3-cryptography-debuginfo: before 3.3.2-150100.7.18.1

python3-cryptography: before 3.3.2-150100.7.18.1

python-cryptography-debuginfo: before 3.3.2-150100.7.18.1

python2-cryptography: before 3.3.2-150100.7.18.1

python-cryptography-debugsource: before 3.3.2-150100.7.18.1

python2-cryptography-debuginfo: before 3.3.2-150100.7.18.1

CPE2.3

• cpe:2.3:o:suse:public_cloud_module:15-SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.0:*:*:*:*:*:*:*
• cpe:2.3:a:suse:python3-cryptography-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python3-cryptography:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python-cryptography-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python2-cryptography:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python-cryptography-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python2-cryptography-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20234844-1/

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.