CVE-2020-5395
fontforge: out-of-bounds write in SFD_GetFontMetaData function in sfd.c
Severity Score
8.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
FontForge 20190801 has a use-after-free in SFD_GetFontMetaData in sfd.c.
FontForge versión 20190801, tiene un uso de la memoria previamente liberada de la función SFD_GetFontMetaData en el archivo sfd.c.
An out-of-bounds write was discovered in fontforge while parsing SFD files containing very large LayerCount tokens. The flaw allows an attacker to overwrite data before a buffer allocated on the heap, thus causing the application to crash or execute arbitrary code.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-01-03 CVE Reserved
- 2020-01-03 CVE Published
- 2024-04-28 EPSS Updated
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
- CWE-416: Use After Free
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2024/03/msg00007.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://github.com/fontforge/fontforge/issues/4084 | 2024-08-04 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Fontforge Search vendor "Fontforge" | Fontforge Search vendor "Fontforge" for product "Fontforge" | 20190801 Search vendor "Fontforge" for product "Fontforge" and version "20190801" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 31 Search vendor "Fedoraproject" for product "Fedora" and version "31" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||