CVE-2021-21779

CVSS 6.8 MEDIUMEPSS 2.9%CWE-416

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.8EPSS 2.9%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

08 Jul 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L

Affected products

n/a · Webkit

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References

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238 https://www.debian.org/security/2021/dsa-4945 http://www.openwall.com/lists/oss-security/2021/07/23/1