Home/CVE/A heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.
CVE

CVE-2019-20021

A heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.

A heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.

MEDIUM · CVSS 5.5 EPSS 0.00324
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-125Out-of-bounds Read
▤

Affected Products & Versions

2
upxall versions
fedoraproject fedoraall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · issues/315github.com
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Dec 2019 · 02:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

3
suse-csafopenSUSE-SU-2024:11486-1
suse-csafopenSUSE-SU-2020:0180-1
suse-csafopenSUSE-SU-2020:0163-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00003.htmlBroken Link
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00007.htmlBroken Link
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D7XU42G6MUQQXHWRP7DCF2JSIBOJ5GOO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUTVSTXAFTD552NO2K2RIF6MDQEHP3BE/
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