CVE-2020-27787

Published: Aug 18, 2022Modified: Apr 11, 2025

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

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.

Affected (1)

Products: Upx: Upx

Upx

1 product

Upx

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Upx Upx	Before 3.96

Related CWEs

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (4)

https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d

Source: secalert@redhat.com

PatchThird Party Advisory

https://github.com/upx/upx/issues/333

Source: secalert@redhat.com

ExploitIssue TrackingPatchThird Party Advisory

https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

https://github.com/upx/upx/issues/333

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitIssue TrackingPatchThird Party Advisory

Timeline

No history available yet.