Home/CVE/WebKitGTK Memory Corruption Vulnerability
CVE

CVE-2019-8720

WebKitGTK Memory Corruption Vulnerability

A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.

HIGH · CVSS 8.8 ⚠ CISA KEV EPSS 0.04121
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬢

Required Remediation

Apply updates per vendor instructions.

⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

23
webkitgtk< 2.26.0
wpewebkit wpe webkit< 2.26.0
redhat codeready linux builderall versions
redhat codeready linux builder eusall versions
redhat codeready linux builder for arm64 eusall versions
redhat codeready linux builder for ibm z systems eusall versions
redhat codeready linux builder for power little endian eusall versions
redhat enterprise linuxall versions
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Mar 2023 · 11:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

8
cisaKEV-CVE-2019-8720
rhsaRHSA-2020:4035Moderate
rhsaRHSA-2020:4451Moderate
suse-csafSUSE-SU-2020:1135-1
suse-csafopenSUSE-SU-2019:2587-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=1876611Issue TrackingThird Party Advisory
https://webkitgtk.org/security/WSA-2019-0005.htmlVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8720US Government Resource
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