GNU LibreDWG 0.7/0.7.1645 bits.c bit_convert_TU null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in GNU LibreDWG 0.7/0.7.1645. This impacts the function bit_convert_TU of the file bits.c. The manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2019-9771. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in GNU LibreDWG 0.7/0.7.1645 (Image Processing Software). It has been rated as problematic. This issue affects the function bit_convert_TU of the file bits.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

An issue was discovered in GNU LibreDWG 0.7 and 0.7.1645. There is a NULL pointer dereference in the function bit_convert_TU at bits.c.

The bug was discovered 03/12/2019. The weakness was presented 03/14/2019 (Website). It is possible to read the advisory at securityfocus.com. The identification of this vulnerability is CVE-2019-9771 since 03/14/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

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

See VDB-131730, VDB-131724, VDB-131725 and VDB-131726 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 7.5
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: Null pointer dereference
CWE: CWE-476 / CWE-404
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

03/12/2019 🔍
03/14/2019 +2 days 🔍
03/14/2019 +0 days 🔍
03/14/2019 +0 days 🔍
08/01/2023 +1601 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: 99⛔
Status: Not defined

CVE: CVE-2019-9771 (🔍)
GCVE (CVE): GCVE-0-2019-9771
GCVE (VulDB): GCVE-100-131723
SecurityFocus: 107447

See also: 🔍

Entryinfo

Created: 03/14/2019 14:10
Updated: 08/01/2023 11:20
Changes: 03/14/2019 14:10 (56), 05/16/2020 16:14 (2), 08/01/2023 11:20 (5)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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