SignKorea SKCrypAX ActiveX Control Multiple Buffer Overflows
Secunia Advisory: SA24820
Release Date: 2007-04-09
Last Update: 2007-04-12
Popularity: 4,681 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:SignKorea SKCrypAX ActiveX Control 5.x

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CVE reference:CVE-2007-1955


Description:
Sukhee Jung has reported some vulnerabilities in SignKorea's SKCrypAX ActiveX control, which can be exploited by malicious people to compromise a user's system.

The vulnerabilities are caused due to boundary errors within the "DownloadCert()", "DecryptFileByKey()", and "EncryptFileByKey()" methods. These can be exploited to cause stack-based buffer overflows via overly long strings passed as certain arguments to the said methods.

The vulnerabilities are reported in version 5.4.1.2. Other versions may also be affected.

Solution:
Update to the latest version.

Provided and/or discovered by:
Sukhee Jung

Changelog:
2007-04-12: Added CVE reference.

Extended Solution:
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