openEuler update for python-cryptography



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-49083
CWE-ID CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
 openEuler
Operating systems & Components / Operating system

python2-cryptography
Operating systems & Components / Operating system package or component

python-cryptography-help
Operating systems & Components / Operating system package or component

python-cryptography-debugsource
Operating systems & Components / Operating system package or component

python-cryptography-debuginfo
Operating systems & Components / Operating system package or component

python3-cryptography
Operating systems & Components / Operating system package or component

python-cryptography
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains one medium risk vulnerability.

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

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

python2-cryptography: before 3.3.1-5

python-cryptography-help: before 3.3.1-5

python-cryptography-debugsource: before 3.3.1-5

python-cryptography-debuginfo: before 3.3.1-5

python3-cryptography: before 3.3.1-5

python-cryptography: before 3.3.1-5

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1887


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.



###SIDEBAR###