CVE-2018-6942: Null Pointer Dereference
First published: Tue Feb 13 2018(Updated: )
An issue was discovered in FreeType 2 through 2.9. A NULL pointer dereference in the Ins_GETVARIATION() function within ttinterp.c could lead to DoS via a crafted font file.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/freetype | <2.8-0.2ubuntu2.1 | 2.8-0.2ubuntu2.1 |
| <=2.9 | ||
| =17.10 | ||
| Freetype Freetype | <=2.9 | |
| Canonical Ubuntu Linux | =17.10 | |
| debian/freetype | 2.9.1-3+deb10u3 2.9.1-3+deb10u2 2.10.4+dfsg-1+deb11u1 2.12.1+dfsg-5 2.13.2+dfsg-1 |
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Reference Links
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5736
- https://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=29c759284e305ec428703c9a5831d0b1fc3497ef
- https://usn.ubuntu.com/3572-1/
- https://www.oracle.com/security-alerts/cpuapr2020.html
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00054.html
- https://launchpad.net/bugs/cve/CVE-2018-6942
- https://security-tracker.debian.org/tracker/CVE-2018-6942
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6942
- https://ubuntu.com/security/notices/USN-3572-1
- https://nvd.nist.gov/vuln/detail/CVE-2018-6942
- https://ubuntu.com/security/CVE-2018-6942
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2018-6942.
What is the severity rating of CVE-2018-6942?
The severity rating of CVE-2018-6942 is medium with a value of 6.5.
What is the affected software?
The affected software is FreeType 2 through 2.9.
How can the vulnerability be exploited?
The vulnerability can be exploited by using a crafted font file.
Is there a fix available for CVE-2018-6942?
Yes, there are remedies available for the vulnerability, depending on the affected software version. Please refer to the references for specific remedies.
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- source/MITRE
- agent/weakness
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- vendor/freetype
- canonical/freetype freetype
- version/freetype freetype/2.9
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/17.10
- package-manager/ubuntu
- package-manager/debian