openEuler 20.03 LTS update for python2

Published: 2020-09-30 | Updated: 2025-06-28

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2019-20907 CVE-2013-1753
CWE-ID	CWE-835 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	openEuler Operating systems & Components / Operating system python2-tools Operating systems & Components / Operating system package or component python2-tkinter Operating systems & Components / Operating system package or component python2-help Operating systems & Components / Operating system package or component python2-devel Operating systems & Components / Operating system package or component python2-debugsource Operating systems & Components / Operating system package or component python2-debuginfo Operating systems & Components / Operating system package or component python2-debug Operating systems & Components / Operating system package or component python2 Operating systems & Components / Operating system package or component
Vendor	openEuler

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Infinite loop

EUVDB-ID: #VU32881

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-2019-20907

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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

The vulnerability exists due to infinite loop In Lib/tarfile.py in Python. A remote attacker can create a specially crafted TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS

python2-tools: before 2.7.18-2

python2-tkinter: before 2.7.18-2

python2-help: before 2.7.18-2

python2-devel: before 2.7.18-2

python2-debugsource: before 2.7.18-2

python2-debuginfo: before 2.7.18-2

python2-debug: before 2.7.18-2

python2: before 2.7.18-2

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1072

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) Input validation error

EUVDB-ID: #VU110145