SUSE update for python3

1) Resource exhaustion

EUVDB-ID: #VU69392

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-2022-45061

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to usage of an unnecessary quadratic algorithm in one path when processing some inputs to the IDNA (RFC 3490) decoder. A remote attacker can pass a specially crafted name to he decoder, trigger resource excessive CPU consumption and perform a denial of service (DoS) attack.

Mitigation

Update the affected package python3 to the latest version.

Vulnerable software versions

SUSE Enterprise Storage: 6 - 7.1

SUSE Manager Server: 4.1

SUSE Manager Retail Branch Server: 4.1

SUSE Manager Proxy: 4.1

SUSE Linux Enterprise Server for SAP: 15-SP1 - 15-SP2

SUSE Linux Enterprise Server: 15-LTSS - 15-SP2-LTSS

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP2-LTSS

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Micro: 5.1

python3-testsuite: before 3.6.15-150000.3.119.1

python3-tools: before 3.6.15-150000.3.119.1

python3-tk-debuginfo: before 3.6.15-150000.3.119.1

python3-tk: before 3.6.15-150000.3.119.1

python3-idle: before 3.6.15-150000.3.119.1

python3-devel-debuginfo: before 3.6.15-150000.3.119.1

python3-devel: before 3.6.15-150000.3.119.1

python3-debugsource: before 3.6.15-150000.3.119.1

python3-debuginfo: before 3.6.15-150000.3.119.1

python3-dbm-debuginfo: before 3.6.15-150000.3.119.1

python3-dbm: before 3.6.15-150000.3.119.1

python3-curses-debuginfo: before 3.6.15-150000.3.119.1

python3-curses: before 3.6.15-150000.3.119.1

python3-core-debugsource: before 3.6.15-150000.3.119.1

python3-base-debuginfo: before 3.6.15-150000.3.119.1

python3-base: before 3.6.15-150000.3.119.1

python3: before 3.6.15-150000.3.119.1

libpython3_6m1_0-debuginfo: before 3.6.15-150000.3.119.1

libpython3_6m1_0: before 3.6.15-150000.3.119.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20224258-1/

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.