swftools up to 20200710 gmem.cc grealloc null pointer dereference

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4.5	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in swftools up to 20200710. Affected by this vulnerability is the function grealloc of the file gmem.cc. Performing a manipulation results in null pointer dereference. This vulnerability is identified as CVE-2021-39553. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in swftools up to 20200710 (Programming Tool Software). This affects the function grealloc of the file gmem.cc. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability.

The weakness was released 09/21/2021 as 103. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2021-39553 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.

Statistical analysis made it clear that VulDB provides the best quality 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: 🔍

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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: 103
Status: Confirmed

CVE: CVE-2021-39553 (🔍)
GCVE (CVE): GCVE-0-2021-39553
GCVE (VulDB): GCVE-100-183051

Entryinfo

Created: 09/21/2021 09:48
Updated: 09/30/2021 08:34
Changes: 09/21/2021 09:48 (39), 09/30/2021 08:31 (1), 09/30/2021 08:34 (18)
Complete: 🔍
Cache ID: 216::103