libjpeg up to 2020021 huffmandecoder.hpp HuffmanDecoder::Get null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in libjpeg up to 2020021. Affected by this issue is the function HuffmanDecoder::Get of the file huffmandecoder.hpp. The manipulation leads to null pointer dereference. This vulnerability is referenced as CVE-2021-39516. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in libjpeg up to 2020021 and classified as problematic. This issue affects the function HuffmanDecoder::Get of the file huffmandecoder.hpp. 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 weakness was published 09/21/2021. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-39516 since 08/23/2021. It demands that the victim is doing some kind of user interaction. 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

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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

08/23/2021 🔍
09/21/2021 +29 days 🔍
09/21/2021 +0 days 🔍
09/29/2021 +8 days 🔍

Sourcesinfo

Advisory: 42
Status: Confirmed

CVE: CVE-2021-39516 (🔍)
GCVE (CVE): GCVE-0-2021-39516
GCVE (VulDB): GCVE-100-182975

Entryinfo

Created: 09/21/2021 04:04
Updated: 09/29/2021 14:17
Changes: 09/21/2021 04:04 (37), 09/29/2021 14:13 (2), 09/29/2021 14:17 (18)
Complete: 🔍
Cache ID: 216::103

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

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