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CVE-2023-23457

Upx: segv on packlinuxelf64::invert_pt_dynamic() in p_lx_elf.cpp

Published: Jan 12, 2023Updated: Apr 11, 2025 Sources: CVE List NVDCWE-119
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.3%
Top 73.5%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

A Segmentation fault was found in UPX in PackLinuxElf64::invert_pt_dynamic() 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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:LI:LA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-119

Affected Products

upxupx
Library
DevTools & CI / build-test-tools
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
upxoss-projectATDevTools & CIaka ultimate packer for executables
fedoraprojectoss-projectUSOperating Systemsaka fedora project

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=2160382
bugzilla.redhat.com
https://github.com/upx/upx/commit/779b648c5f6aa9b33f4728f79dd4d0efec0bf860
github.com
https://github.com/upx/upx/issues/631
github.com
and 2 more references View all →

Timeline

Published
Jan 12, 2023
Last Updated
Apr 11, 2025

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