ttftool 0.9.2 ttf.c readU16 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in ttftool 0.9.2. This issue affects the function readU16 of the file ttf.c. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2022-46440. No exploit is available.

Detailsinfo

A vulnerability was found in ttftool 0.9.2 and classified as critical. Affected by this issue is the function readU16 of the file ttf.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

ttftool v0.9.2 was discovered to contain a segmentation violation via the readU16 function at ttf.c.

The weakness was published 02/24/2023 as 194. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-46440 since 12/05/2022. 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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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

12/05/2022 🔍
02/24/2023 +81 days 🔍
02/24/2023 +0 days 🔍
03/24/2023 +28 days 🔍

Sourcesinfo

Advisory: 194
Status: Confirmed

CVE: CVE-2022-46440 (🔍)
GCVE (CVE): GCVE-0-2022-46440
GCVE (VulDB): GCVE-100-221720

Entryinfo

Created: 02/24/2023 08:25
Updated: 03/24/2023 16:41
Changes: 02/24/2023 08:25 (39), 03/24/2023 16:41 (9)
Complete: 🔍
Cache ID: 216::103

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