CVE-2020-21836
HIGHCVSS 8.8/10EPSS 1.17%
Last modified
CVE-2020-21836 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10 via read_2004_section_preview ../../src/decode.c:3175.. EPSS estimates a 1.17% chance of exploitation in the next 30 days.
Description
A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10 via read_2004_section_preview ../../src/decode.c:3175.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Libredwg | 0.10 |
References
- https://github.com/LibreDWG/libredwg/issues/188#issuecomment-574493437Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/LibreDWG/libredwg/issues/188#issuecomment-574493437Exploit, Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-21836?
A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10 via read_2004_section_preview ../../src/decode.c:3175.
How severe is CVE-2020-21836?
CVE-2020-21836 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.
How do I fix CVE-2020-21836?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-21830A heap based buffer overflow vulneraibility exists in GNU Li…8.8
- CVE-2020-21831A heap based buffer overflow vulnerability exists in GNU Lib…8.8
- CVE-2020-21832A heap based buffer overflow vulnerability exists in GNU Lib…8.8
- CVE-2020-21833A heap based buffer overflow vulnerability exits in GNU Libr…8.8
- CVE-2020-21834A null pointer deference issue exists in GNU LibreDWG 0.10 v…6.5
- CVE-2020-21835A null pointer deference issue exists in GNU LibreDWG 0.10 v…6.5
- CVE-2020-21838A heap based buffer overflow vulnerability exits in GNU Libr…8.8
- CVE-2020-21839An issue was discovered in GNU LibreDWG 0.10. Crafted input …6.5
- CVE-2020-2184A cross-site request forgery vulnerability in Jenkins CVS Pl…4.3
- CVE-2020-21840A heap based buffer overflow vulnerability exits in GNU Libr…8.8
- CVE-2020-21841A heap based buffer overflow vulnerability exits in GNU Libr…8.8
- CVE-2020-21842A heap based buffer overflow vulnerability exists in GNU Lib…8.8
Are you affected by CVE-2020-21836?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST