Ubuntu update for python2.7

Published: 2022-12-08

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-37454 CVE-2022-45061
CWE-ID	CWE-190 CWE-400
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available.
Vulnerable software	Ubuntu Operating systems & Components / Operating system python3.8 (Ubuntu package) Operating systems & Components / Operating system package or component libpython3.8 (Ubuntu package) Operating systems & Components / Operating system package or component libpython3.10 (Ubuntu package) Operating systems & Components / Operating system package or component python3.10 (Ubuntu package) Operating systems & Components / Operating system package or component python3.6 (Ubuntu package) Operating systems & Components / Operating system package or component python2.7 (Ubuntu package) Operating systems & Components / Operating system package or component libpython3.6 (Ubuntu package) Operating systems & Components / Operating system package or component libpython2.7 (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Integer overflow

EUVDB-ID: #VU68887

Risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2022-37454

CWE-ID: CWE-190 - Integer overflow

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow within the Keccak XKCP SHA-3 reference implementation. A remote attacker can pass specially crafted data to the application, trigger an integer overflow and execute arbitrary code on the target system or eliminate expected cryptographic properties.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package python2.7 to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 22.10

python3.8 (Ubuntu package): before 3.8.10-0ubuntu1~20.04.6

libpython3.8 (Ubuntu package): before 3.8.10-0ubuntu1~20.04.6

libpython3.10 (Ubuntu package): before 3.10.6-1~22.04.2

python3.10 (Ubuntu package): before 3.10.6-1~22.04.2

python3.6 (Ubuntu package): before 3.6.9-1~18.04ubuntu1.9

python2.7 (Ubuntu package): before 2.7.17-1~18.04ubuntu1.10

libpython3.6 (Ubuntu package): before 3.6.9-1~18.04ubuntu1.9

libpython2.7 (Ubuntu package): before 2.7.17-1~18.04ubuntu1.10

CPE2.3

External links

https://ubuntu.com/security/notices/USN-5767-1

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. However, proof of concept for this vulnerability is available.

2) Resource exhaustion

EUVDB-ID: #VU69392

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-2022-45061

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No