PT-2021-23588 · Linux Mint+1 · Linuxmint+1

Simonferquel · Published 2021-04-14 · Updated 2025-04-11 · CVE-2021-4235

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions No specific software or versions are mentioned in the provided descriptions.

Description The issue is related to unbounded alias chasing in YAML files. A maliciously crafted YAML file can cause the system to consume significant system resources, potentially leading to a denial of service if the system is parsing user input.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

AZL-43447

AZL-43642

AZL-43918

AZL-44229

AZL-45237

AZL-45360

CVE-2021-4235

DLA-3479-1

GHSA-R88R-GMRH-7J83

GO-2021-0061

RHSA-2022:7398

USN-6287-1

Affected Products

Linuxmint

Ubuntu

References · 26

• 🔥 https://github.com/go-yaml/yaml/pull/375 · Exploit
• https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-4235 · Security Note
• https://osv.dev/vulnerability/CVE-2021-4235 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-43918 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6287-1 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-43642 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6287-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3479-1 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-43447 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-r88r-gmrh-7j83 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-4235 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-45360 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2021-0061 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-4235 · Vendor Advisory