openEuler update for python3

1) Type conversion

EUVDB-ID: #VU67760

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-10735

CWE-ID: CWE-704 - Type conversion

Exploit availability: No

Description

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

The vulnerability exists due to a type confusion in algorithms with quadratic time complexity when using non-binary bases within the int() call. A remote attacker can pass specially crafted data to the affected 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

python3-help: before 3.7.9-28

python3-debuginfo: before 3.7.9-28

python3-debugsource: before 3.7.9-28

python3-devel: before 3.7.9-28

python3-debug: before 3.7.9-28

python3: before 3.7.9-28

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:22.03:LTS:*:*:*:*:*:*
• cpe:2.3:a:openeuler:python3-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:python3-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:python3-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:python3-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:python3-debug:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:python3:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1921

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.