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CVE-2020-27787

Date: August 18, 2022

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.

Language: C

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2020-27787
https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d
https://github.com/upx/upx/issues/333
https://security-tracker.debian.org/tracker/CVE-2020-27787
https://www.mend.io/vulnerability-database/CVE-2020-27787

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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