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OpenSSL: Vulnerabilities in ASN.1 parsing (CVE-2003-0543, CVE-2003-0544) (Windows)

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

1 year ago

Modified

Modified

1 year ago

Summary

OpenSSL is prone to multiple denial of service (DoS) vulnerabilities.

Insight

Insight

The following vulnerabilities exist: - An integer overflow could allow remote attackers to cause a denial of service (crash) via an SSL client certificate with certain ASN.1 tag values. - Incorrect tracking of the number of characters in certain ASN.1 inputs could allow remote attackers to cause a denial of service (crash) by sending an SSL client certificate that causes OpenSSL to read past the end of a buffer when the long form is used.

Affected Software

Affected Software

OpenSSL version 0.9.6 through 0.9.6j and 0.9.7 through 0.9.7b.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Update OpenSSL to version 0.9.6.k, 0.9.7c or later. See the references for more details.

Common Vulnerabilities and Exposures (CVE)