CVE-2021-39518: Buffer Overflow
First published: Mon Sep 20 2021(Updated: )
An issue was discovered in libjpeg through 2020021. LineBuffer::FetchRegion() in linebuffer.cpp has a heap-based buffer overflow.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| IJG libjpeg | <=2020021 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-39518?
CVE-2021-39518 is classified as a high severity vulnerability due to the potential for heap-based buffer overflow leading to arbitrary code execution.
How do I fix CVE-2021-39518?
To fix CVE-2021-39518, update libjpeg to version 2020021 or later, which contains a patch for the vulnerability.
What systems are vulnerable to CVE-2021-39518?
Systems using libjpeg versions up to and including 2020021 are vulnerable to CVE-2021-39518.
What type of vulnerability is CVE-2021-39518?
CVE-2021-39518 is a heap-based buffer overflow vulnerability found in the LineBuffer::FetchRegion() function.
What can happen if CVE-2021-39518 is exploited?
If exploited, CVE-2021-39518 can allow an attacker to execute arbitrary code on the affected system.
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- canonical/ijg libjpeg
- version/ijg libjpeg/2020021