Out-of-bounds Read in Google Chrome
CVE-2020-6455
Out of bounds read in WebSQL in Google Chrome prior to 81.0.4044.92 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Google Chrome — versions unspecified
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 30, 31, 32
- openSUSE Backports — versions sle-15
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- chromereleases.googleblog.com/2020/04/stable-channel-update-for-desktop_7.html (Release Notes, Vendor Advisory)
- crbug.com/1059669 (Permissions Required, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-04/msg00024.html (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-04/msg00031.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.debian.org/security/2020/dsa-4714 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-6455?
- CVE-2020-6455 is a high-severity vulnerability in Google Chrome, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2020-04-13.
- How severe is CVE-2020-6455?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-6455 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.