CVE-2020-27787 — Vulnetix

CVE-2020-27787 PUBLISHED

A Segmentaation fault was found in UPX in invert_pt_dynamic() function in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.

EPSS 0.05% · 15.5th percentile

Risk Scores

EPSS Score

0.05%

15.5th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:18.04:LTS	upx-ucl	3.94-4, 0, 3.94-2
Ubuntu:20.04:LTS	upx-ucl	3.95-2, 3.95-2build1, 0
Ubuntu:16.04:LTS	upx-ucl	0, 3.91-1

Exploit Intelligence

https://github.com/upx/upx/issues/333 (nist-nvd)
https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d (circl)

Timeline

Aug 18, 2022 CVE Published
Aug 19, 2022 EPSS Score
Oct 4, 2022 EPSS Score
Nov 19, 2022 EPSS Score
Jan 4, 2023 EPSS Score
Feb 18, 2023 EPSS Score
Mar 7, 2023 EPSS Score
Apr 5, 2023 EPSS Score
May 21, 2023 EPSS Score
Jul 6, 2023 EPSS Score
Aug 21, 2023 EPSS Score
Oct 6, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2020-27787 third-party-advisory
https://github.com/upx/upx/issues/333 third-party-advisory
https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2020-27787 third-party-advisory

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