CVE-2020-27788

MEDIUM EPSS 23.3%
Published Aug 18, 20223y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 18, 2022 3y ago
Last Modified Jun 17, 2026 2w ago

Description

An out-of-bounds read access vulnerability was discovered in UPX in PackLinuxElf64::canPack() 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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
23.3% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 1

VendorProductVersionRange
upxupx* <3.96

References 2

  • github.com https://github.com/upx/upx/commit/1bb93d4fce9f1d764ba57bf5ac154af515b3fc83
    PatchThird Party Advisory
  • github.com https://github.com/upx/upx/issues/332
    ExploitIssue TrackingPatchThird Party Advisory

Remediation

  • github.com https://github.com/upx/upx/commit/1bb93d4fce9f1d764ba57bf5ac154af515b3fc83
    PatchThird Party Advisory
  • github.com https://github.com/upx/upx/issues/332
    ExploitIssue TrackingPatchThird Party Advisory