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MitreCVE-2021-39515

HistorySep 20, 2021 - 4:15 p.m.

CVE-2021-39515

2021-09-2016:15:11

CWE-476

mitre

web.nvd.nist.gov

cve-2021-39515

libjpeg

null pointer dereference

sampleinterleavedlsscan

parsemcu

denial of service

nvd

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

34.3%

JSON

An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function SampleInterleavedLSScan::ParseMCU() located in sampleinterleavedlsscan.cpp. It allows an attacker to cause Denial of Service.

Affected configurations

Nvd

Node

jpeglibjpegRange≤2020021

VendorProductVersionCPE
jpeglibjpeg*cpe:2.3:a:jpeg:libjpeg:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
jpeg	libjpeg	*	cpe:2.3:a:jpeg:libjpeg::::::::

References

github.com/thorfdbg/libjpeg/issues/37

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

34.3%

JSON

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