Ubuntu update for ruby2.3



| Updated: 2022-07-20
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-28739
CWE-ID CWE-704
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

ruby2.3 (Ubuntu package)
Operating systems & Components / Operating system package or component

libruby2.3 (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Type conversion

EUVDB-ID: #VU62081

Risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2022-28739

CWE-ID: CWE-704 - Type conversion

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a type conversion error in some convertion methods like Kernel#Float</code> and <code>String#to_f. A remote attacker can pass specially crafted data to the affected application, trigger memory corruption and execute arbitrary code in the system.

Mitigation

Update the affected package ruby2.3 to the latest version.

Vulnerable software versions

Ubuntu: 16.04

ruby2.3 (Ubuntu package): before 2.3.12~ubuntu16.04.16+esm3

libruby2.3 (Ubuntu package): before 2.3.12~ubuntu16.04.16+esm3

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5462-2


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.



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