HarfBuzz 2.9.0 set out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in HarfBuzz 2.9.0. This affects the function hb_bit_set_invertible_t::set. The manipulation leads to out-of-bounds write. This vulnerability is uniquely identified as CVE-2021-45931. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in HarfBuzz 2.9.0 and classified as critical. This issue affects the function hb_bit_set_invertible_t::set. 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.

The weakness was disclosed 01/01/2022. It is possible to read the advisory at bugs.chromium.org. The identification of this vulnerability is CVE-2021-45931 since 12/31/2021. Technical details of the vulnerability are known, but there is no available exploit.

Applying the patch d3e09bf4654fe5478b6dbf2b26ebab6271317d81 is able to eliminate this problem. The bugfix is ready for download at github.com.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

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

Physical: No
Local: No
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: d3e09bf4654fe5478b6dbf2b26ebab6271317d81

Timelineinfo

12/31/2021 🔍
01/01/2022 +1 days 🔍
01/01/2022 +0 days 🔍
01/05/2022 +4 days 🔍

Sourcesinfo

Product: github.com

Advisory: d3e09bf4654fe5478b6dbf2b26ebab6271317d81
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-45931 (🔍)
GCVE (CVE): GCVE-0-2021-45931
GCVE (VulDB): GCVE-100-189527

Entryinfo

Created: 01/01/2022 10:31
Updated: 01/05/2022 13:37
Changes: 01/01/2022 10:31 (40), 01/05/2022 13:37 (2)
Complete: 🔍
Cache ID: 216::103

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