Gentoo update for Nokogiri

1) NULL pointer dereference

EUVDB-ID: #VU70042

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-2022-23476

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within the Nokogiri::XML::Reader#attribute_hash method when parsing input returned from "xmlTextReaderExpand". A remote attacker can pass specially crafted XML input to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages.
dev-ruby/nokogiri to version: 1.13.10

Vulnerable software versions

Gentoo Linux: All versions

dev-ruby/nokogiri: before 1.13.10

CPE2.3

• cpe:2.3:o:gentoo:gentoo_linux:*:*:*:*:*:*:*:*
• cpe:2.3:o:gentoo:dev-ruby_nokogiri:*:*:*:*:*:gentoo_linux:*:*

External links

https://security.gentoo.org/glsa/202408-13

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.