What’s Vulnerable › Vulnerabilities

CVE-2021-46142

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-06 · updated 2026-06-17
• Weakness: CWE-416

Description

An issue was discovered in uriparser before 0.9.6. It performs invalid free operations in uriNormalizeSyntax.

Affected products

• Debian Linux: 9.0, 10.0, 11.0
• Fedoraproject Extra Packages For Enterprise Linux: 8.0
• Fedoraproject Fedora: 34, 35
• openSUSE Backports: sle-15
• openSUSE Factory: all versions
• openSUSE Leap: 15.3
• uriparser: before 0.9.6 — fixed in 0.9.6

How to fix

Upgrade to a fixed version: uriparser 0.9.6. Check the vendor advisory for mitigations.

References

• https://blog.hartwork.org/posts/uriparser-096-with-security-fixes-released/
• https://github.com/uriparser/uriparser/issues/122
• https://github.com/uriparser/uriparser/pull/124
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6T7WA27H7K3WI2AXUAGPWBGK4HM65D/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGIJTDNEMU2V4H3JJBQVKBRHU5GBQKG2/
• https://www.debian.org/security/2022/dsa-5063
• https://blog.hartwork.org/posts/uriparser-096-with-security-fixes-released/
• https://github.com/uriparser/uriparser/issues/122
• https://github.com/uriparser/uriparser/pull/124
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6T7WA27H7K3WI2AXUAGPWBGK4HM65D/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGIJTDNEMU2V4H3JJBQVKBRHU5GBQKG2/
• https://www.debian.org/security/2022/dsa-5063

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