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CVE-2020-15999: Google Chrome FreeType Heap Buffer Overflow Vulnerability
CVE-2020-15999 is rated critical with a CVSS v3.1 base score of 9.6 and affects Google Chrome FreeType, along with 4 other products in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available. CISA added it to its Known Exploited Vulnerabilities catalog on 2021-11-03, which means exploitation in the wild has been observed.
Vulnerability description
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.
Severity breakdown
CVSS v3.1 9.6: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: Required. A user must take an action, such as opening a file or following a link.
- Scope: Changed. Impact reaches beyond the vulnerable component to other resources.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-787: Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
CWE-120: Buffer Copy without Checking Size of Input
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
Affected products
- Google Chrome: before 86.0.4240.111
- Freetype: from 2.6.0 before 2.10.4
- Debian Linux: 10.0
- Fedoraproject: 31
- Opensuse Backports Sle: 15.0 sp2
- Netapp Ontap Select Deploy Administration Utility: all versions listed by NVD
References
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html
- http://seclists.org/fulldisclosure/2020/Nov/33
- https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html
- https://crbug.com/1139963
- https://googleprojectzero.blogspot.com/p/rca-cve-2020-15999.html
- https://security.gentoo.org/glsa/202011-12
- https://security.gentoo.org/glsa/202012-04
- https://security.gentoo.org/glsa/202401-19
- https://www.debian.org/security/2021/dsa-4824
- https://security.netapp.com/advisory/ntap-20240812-0001/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15999