CVE-2020-6464: debian debian_linux Out-of-bounds Write
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2020-6464DEBIAN-CVE-2020-6464
Published 21-05-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-6464 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 1.97% chance of exploitation in the next 30 days, higher than 80% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
1.97%
0%100%
Low · +0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 9 · Related 6Timeline
- 21-05-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Type confusion in Blink in Google Chrome prior to 81.0.4044.138 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.97%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
+0.05 pp
From 1.92% on 19-09-2026
19-09-202619-10-2026
EPSS score1.97%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (crbug.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
- CWE-843Access of Resource Using Incompatible Type ('Type Confusion')The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
Affected systems
Debian2 products
- chromium< 83.0.4103.83-1
- debian_linuxEOL9.0 | 10.0
Google1 product
- chrome≥ unspecified, < 81.0.4044.138 | < 81.0.4044.138
Opensuse1 product
- leapEOL15.1 | 15.2
Ubuntu1 product
- chromium-browser< 81.0.4044.138-0ubuntu0.16.04.1 | < 81.0.4044.138-0ubuntu0.18.04.1
4 vendors · 5 products
References
9 links- chromereleases.googleblog.com/2020/05/stable-channel-update-for-desktop.htmlX Refsource MISCRelease NotesVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00056.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory