A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.
                
            References
                    Configurations
                    History
                    11 Apr 2025, 12:27
| Type | Values Removed | Values Added | 
|---|---|---|
| CPE | cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:* | |
| First Time | 
        
        Upx upx
         Upx  | 
12 Dec 2024, 01:15
| Type | Values Removed | Values Added | 
|---|---|---|
| References | 
        
        
  | 
21 Nov 2024, 07:46
| Type | Values Removed | Values Added | 
|---|---|---|
| CVSS | 
        v2 :  v3 :  | 
    
        v2 : unknown
         v3 : 5.3  | 
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=2160381 - Issue Tracking, Third Party Advisory | |
| References | () https://github.com/upx/upx/commit/510505a85cbe45e51fbd470f1aa8b02157c429d4 - Patch, Third Party Advisory | |
| References | () https://github.com/upx/upx/issues/632 - Exploit, Third Party Advisory | |
| References | () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI/ - | |
| References | () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ/ - | 
19 Apr 2024, 14:15
| Type | Values Removed | Values Added | 
|---|---|---|
| New CVE | 
Information
                Published : 2023-01-12 19:15
Updated : 2025-04-11 12:27
NVD link : CVE-2023-23456
Mitre link : CVE-2023-23456
CVE.ORG link : CVE-2023-23456
JSON object : View
Products Affected
                upx
- upx
 
fedoraproject
- fedora
 
CWE
                
                    
                        
                        CWE-787
                        
            Out-of-bounds Write
