swftools up to 20200710 gmem.cc copyString null pointer dereference

HistoryDiffrelatejsonxmlCTI

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4.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in swftools up to 20200710. It has been classified as problematic. This issue affects the function copyString of the file gmem.cc. This manipulation causes null pointer dereference. This vulnerability is registered as CVE-2021-39557. No exploit is available.

Detailsinfo

A vulnerability has been found in swftools up to 20200710 (Programming Tool Software) and classified as problematic. Affected by this vulnerability is the function copyString of the file gmem.cc. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability.

The weakness was published 09/21/2021 as 97. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-39557 since 08/23/2021. Technical details of the vulnerability are known, but there is no available exploit.

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

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

Productinfo

Type

Programming Tool Software

Name

swftools

Version

20200710

License

open-source

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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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: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/23/2021 🔍
09/21/2021 +29 days 🔍
09/21/2021 +0 days 🔍
09/30/2021 +9 days 🔍

Sourcesinfo

Advisory: 97
Status: Confirmed

CVE: CVE-2021-39557 (🔍)
GCVE (CVE): GCVE-0-2021-39557
GCVE (VulDB): GCVE-100-183055

Entryinfo

Created: 09/21/2021 09:50
Updated: 09/30/2021 09:00
Changes: 09/21/2021 09:50 (39), 09/30/2021 08:56 (1), 09/30/2021 09:00 (18)
Complete: 🔍
Cache ID: 216::103