Vulnerability Information
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Vulnerability Title
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Vulnerability Description
Cisco Sourcefire Snort 3.0 before build 233 mishandles Ether Type Validation. Since valid ether type and IP protocol numbers do not overlap, Snort++ stores all protocol decoders in a single array. That makes it possible to craft packets that have IP protocol numbers in the ether type field which will confuse the Snort++ decoder. For example, an eth:llc:snap:icmp6 packet will cause a crash because there is no ip6 header with which to calculate the icmp6 checksum. Affected decoders include gre, llc, trans_bridge, ciscometadata, linux_sll, and token_ring. The fix adds a check in the packet manager to validate the ether type before indexing the decoder array. An out of range ether type will raise 116:473.
CVSS Information
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Vulnerability Type
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Vulnerability Title
Cisco Sourcefire Snort 安全漏洞
Vulnerability Description
Cisco Sourcefire Snort是美国思科（Cisco）公司（原Snort团队）的一套网络入侵预防软件与网络入侵检测软件。该软件提供数据包嗅探、数据包分析和数据包检测等功能。 Cisco Sourcefire Snort build 233之前的3.0版本中的多个解码器存在安全漏洞，该漏洞源于程序没有正确的处理Type验证。攻击者可利用该漏洞造成拒绝服务（崩溃），多个解码器包括：gre，llc，trans_bridge，ciscometadata，linux_sll，token_ring。
CVSS Information
N/A
Vulnerability Type
N/A