FontForge 20190801 splinesave.c Type2NotDefSplines out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in FontForge 20190801. It has been declared as critical. Affected by this vulnerability is the function Type2NotDefSplines of the file splinesave.c. Such manipulation leads to out-of-bounds write. This vulnerability is referenced as CVE-2020-5496. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in FontForge 20190801 and classified as critical. Affected by this issue is the function Type2NotDefSplines of the file splinesave.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.

The weakness was published 01/03/2020. This vulnerability is handled as CVE-2020-5496 since 01/03/2020. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entry is available at VDB-148279. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/03/2020 🔍
01/03/2020 +0 days 🔍
01/04/2020 +1 days 🔍
03/19/2024 +1536 days 🔍

Sourcesinfo

Product: github.com

Advisory: 4085
Status: Not defined

CVE: CVE-2020-5496 (🔍)
GCVE (CVE): GCVE-0-2020-5496
GCVE (VulDB): GCVE-100-148280
See also: 🔍

Entryinfo

Created: 01/04/2020 11:30
Updated: 03/19/2024 13:41
Changes: 01/04/2020 11:30 (36), 01/04/2020 11:35 (17), 03/19/2024 13:36 (18), 03/19/2024 13:41 (1)
Complete: 🔍
Cache ID: 216::103

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