CVE-2025-20359— Multiple Cisco Products Snort 3 MIME Information Disclosure or Denial of Service Vulnerability

Multiple Cisco Products Snort 3 MIME Information Disclosure or Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an unauthenticated, remote attacker to cause the disclosure of possible sensitive data or cause the Snort 3 Detection Engine to crash. This vulnerability is due to an error in the logic of buffer handling when the MIME fields of the HTTP header are parsed. This can result in a buffer under-read. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to induce one of two possible outcomes: the unexpected restarting of the Snort 3 Detection Engine, which could cause a denial of service (DoS) condition, or information disclosure of sensitive information in the Snort 3 data stream. Due to the under-read condition, it is possible that sensitive information that is not valid connection data could be returned.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

缓冲区下溢读取

Cisco IOS XE Software 安全漏洞

Cisco IOS XE Software是美国思科（Cisco）公司的一种网络操作系统。 Cisco IOS XE Software存在安全漏洞，该漏洞源于HTTP解码器在解析HTTP标头的MIME字段时存在缓冲区处理逻辑错误，可能导致缓冲区欠读攻击或敏感信息泄露。

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