CVE-2020-15999
Confirmed PUBLISHEDHeap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- CVE Published
- Nov 03, 2020
- Exploitation Reported
- Nov 03, 2021
- CVSS
- 9.6 Critical
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
|
Chrome
|
unspecified to < 86.0.4240.111 |
Affected |
CVE References
- openSUSE-SU-2020:1829 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016...
- FEDORA-2020-6b35849edd lists.fedoraproject.org · Vendor Advisory https://lists.fedoraproject.org/archives/list/package-announce%40list...
- GLSA-202011-12 security.gentoo.org · Vendor Advisory https://security.gentoo.org/glsa/202011-12
- GLSA-202012-04 security.gentoo.org · Vendor Advisory https://security.gentoo.org/glsa/202012-04
- DSA-4824 debian.org · Vendor Advisory https://www.debian.org/security/2021/dsa-4824
Show 5 more references
- GLSA-202401-19 security.gentoo.org · Vendor Advisory https://security.gentoo.org/glsa/202401-19
- 20201118 TCMalloc viewer/dumper - TCMalloc Inspector Tool seclists.org · Mailing List http://seclists.org/fulldisclosure/2020/Nov/33
- crbug.com/1139963 crbug.com · CVE Record https://crbug.com/1139963
- chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20... chromereleases.googleblog.com · CVE Record https://chromereleases.googleblog.com/2020/10/stable-channel-update-f...
- googleprojectzero.blogspot.com/p/rca-cve-2020-15999.html googleprojectzero.blogspot.com · CVE Record https://googleprojectzero.blogspot.com/p/rca-cve-2020-15999.html
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2021-11-03 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:N/I:N/A:P
Exploitation Status
Exploited in the wild
Recorded 2021-11-03 00:00:00 UTC · CISA
Proof of concept available
Recorded 2020-11-04 08:22:45 UTC · GitHub
Weaknesses (CWE)
-
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2020-12-30 19:58:33 UTC · 2 stars
Todos los materiales necesarios para la PoC en Chrome y ftview
github · Created 2020-12-30 18:02:23 UTC · 1 stars
Repositorio con un script encargado de explotar la vulnerabilidad CVE-2020-15999
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC over 4 years ago00:00 UTC · over 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
08:22 UTC over 5 years ago08:22 UTC · over 5 years ago
Public PoC available
Public proof-of-concept code published
-
00:00 UTC over 5 years ago00:00 UTC · over 5 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC almost 6 years ago00:00 UTC · almost 6 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2020-15999
{
"cve_id": "CVE-2020-15999",
"title": "Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allo...",
"affected_vendor": "Google",
"affected_product": "Chrome",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 9.6,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}