Title: Multiple Vendor UNACEV2 Archive File Name Buffer Overflow Vulnerability
Severity: HIGH
Description:
UNACEV2.DLL is a library used by multiple applications to decompress ACE archives.
UNACEV2.DLL is prone to a buffer overflow when handling ACE archives that contain files with overly long names. This is a stack-based buffer overflow vulnerability.
The cause of the issue is that filenames will be copied into a finite stack-based buffer without adequate limitations on the size of the source data. This could result in corruption of adjacent regions of stack-based memory. Since sensitive variables related to execution flow (such as a saved return address) are stored adjacent to the buffer, this issue could potentially be exploited to execute arbitrary code.
This vulnerability may be exploited to execute arbitrary code in the context of the user who is running the application. The vulnerability is considered remotely exploitable in nature because malicious ACE archives will likely originate from an external, untrusted source.
Affected Products:
- ALTools ALZip 5.51.0
- ALTools ALZip 5.52.0
- ALTools ALZip 6.0.0 3 (English)
- ALTools ALZip 6.1.0 beta
- ALTools ALZip 6.11.0 (Korean)
- Bitberry Software BitZipper 4.1 SR-1
- ConeXware PowerArchiver 9.60
- Eazel Eazel 1.0
- FilZip FilZip 3.04
- Ivan Zahariev IZArc 3.5 beta 3
- Microchip Data Systems ZipTV for C++ Builder 2006.1.26
- Microchip Data Systems ZipTV for Delphi 7 2006.1.26
- Nathan Moinvaziri ExtractNow 3.60
- Network Automation AutoMate 6.1.0.0
- Rising Antivirus International Rising Antivirus 2006 18.24.10
- Rising Antivirus International Rising Antivirus 2006 18.25.30
- Rising Antivirus International Rising Antivirus 2006 18.25.40
- Rising Antivirus International Rising Antivirus 2006 18.27.21
- UltimateZip UltimateZip 2.7.1
- UltimateZip UltimateZip 3.0.3
- UltimateZip UltimateZip 3.1b
- Where Is It Soft Where Is It 3.73.501
- WinHKI WinHKI 1.66
- WinHKI WinHKI 1.67
- a-squared Anti-Trojan 5.5.421
References:
- ALTools: ALTools Homepage
- ConeXware: PowerArchiver Download Page
- ConeXware: PowerArchiver Home Page
- Eazel: Eazel Home Page
- Ivan Zahariev: IZArc Home Page
- Microchip Data Systems: ZipTV Home Page
- Nathan Moinvaziri: ExtractNow Home Page
- Network Automation: AutoMate 6 / The Next Generation Automation Platform
- Secunia: ExtractNow unacev2.dll Buffer Overflow Vulnerability
- Secunia: PowerArchiver unacev2.dll Buffer Overflow Vulnerability
- Secunia: Rising Antivirus unacev2.dll Buffer Overflow Vulnerability
- Secunia: Secunia Research: AutoMate unacev2.dll Buffer Overflow Vulnerability
- Secunia: ZipTV ARJ Archive Handling and unacev2.dll Buffer Overflows
- Secunia Research: ALZip ACE Archive Handling Buffer Overflow
- Secunia Research <remove-vuln@secunia.com>: Secunia Research: BitZipper unacev2.dll Buffer Overflow Vulnerability
- WinHKI: WinHKI Home Page
- a-squared: a-squared Home Page
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