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CVE-2020-27790

Good to know:

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Date: August 18, 2022

A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service. The highest impact is to Availability.

Language: C

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2020-27790
https://security-tracker.debian.org/tracker/CVE-2020-27790
https://github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26
https://github.com/upx/upx/issues/331
https://www.mend.io/vulnerability-database/CVE-2020-27790

Severity Score

Weakness Type (CWE)

Divide By Zero

CWE-369

Top Fix

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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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