DjVu DjVuLibre up to 3.5.28 djvu File DJVU::GBitmap::decode heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in DjVu DjVuLibre up to 3.5.28. Affected by this vulnerability is the function DJVU::GBitmap::decode of the component djvu File Handler. Such manipulation leads to heap-based overflow. This vulnerability is traded as CVE-2021-32493. There is no exploit available.

Detailsinfo

A vulnerability was found in DjVu DjVuLibre up to 3.5.28 and classified as critical. Affected by this issue is the function DJVU::GBitmap::decode of the component djvu File Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability.

The weakness was shared 06/25/2021. The advisory is shared for download at bugzilla.redhat.com. This vulnerability is handled as CVE-2021-32493. 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

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
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: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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

05/10/2021 🔍
06/25/2021 +46 days 🔍
06/25/2021 +0 days 🔍
07/02/2021 +7 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2021-32493 (🔍)
GCVE (CVE): GCVE-0-2021-32493
GCVE (VulDB): GCVE-100-177584

Entryinfo

Created: 06/25/2021 12:57
Updated: 07/02/2021 13:24
Changes: 06/25/2021 12:57 (37), 07/02/2021 13:18 (2), 07/02/2021 13:24 (18)
Complete: 🔍
Cache ID: 216::103

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