8.8
CWE
787 119
Advisory Published
Updated

CVE-2020-21840: Buffer Overflow

First published: Mon May 17 2021(Updated: )

A heap based buffer overflow vulnerability exits in GNU LibreDWG 0.10 via bit_search_sentinel ../../src/bits.c:1985.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
GNU LibreDWG=0.10

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Frequently Asked Questions

  • What is CVE-2020-21840?

    CVE-2020-21840 is a heap based buffer overflow vulnerability in GNU LibreDWG 0.10.

  • How severe is CVE-2020-21840?

    CVE-2020-21840 has a severity value of 8.8 (high).

  • What software version is affected by CVE-2020-21840?

    GNU LibreDWG 0.10 is affected by CVE-2020-21840.

  • How can CVE-2020-21840 be exploited?

    CVE-2020-21840 can be exploited through a heap based buffer overflow in the bit_search_sentinel function.

  • Where can I find more information about CVE-2020-21840?

    You can find more information about CVE-2020-21840 on the following references: [http://gnu.com](http://gnu.com), [http://libredwg.com](http://libredwg.com), [https://github.com/LibreDWG/libredwg/issues/188#issuecomment-574493513](https://github.com/LibreDWG/libredwg/issues/188#issuecomment-574493513)

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