CVE-2020-25690: Buffer Overflow
First published: Fri Oct 30 2020(Updated: )
An out-of-bounds write flaw was found in FontForge in versions before 20200314 while parsing SFD files containing certain LayerCount tokens. This flaw allows an attacker to manipulate the memory allocated on the heap, causing the application to crash or execute arbitrary code. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/fontforge | <20200314 | 20200314 |
| Fontforge Fontforge | <20200314 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1893188
- https://access.redhat.com/security/cve/CVE-2020-5395
- https://github.com/fontforge/fontforge/commit/048a91e2682c1a8936ae34dbc7bd70291ec05410
- https://github.com/fontforge/fontforge/commit/b96273acc691ac8a36c6a8dd4de8e6edd7eaae59
- https://access.redhat.com/security/cve/cve-2020-25690
- https://access.redhat.com/errata/RHSA-2020:4844
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2020-25690.
What is the severity level of CVE-2020-25690?
CVE-2020-25690 has a severity level of 8.8 (high).
How does CVE-2020-25690 affect FontForge?
CVE-2020-25690 affects FontForge versions before 20200314.
What is the impact of CVE-2020-25690?
CVE-2020-25690 allows an attacker to manipulate the memory allocated on the heap, causing the application to crash or execute arbitrary code.
How can I fix CVE-2020-25690?
To fix CVE-2020-25690, it is recommended to update FontForge to version 20200314 or later.
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