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libpcp in Performance Co-Pilot (PCP) before 3.6.5 allows remote attackers to cause a denial of service and possibly execute arbitrary code via (1) a PDU with the numcreds field value greater than the number of actual elements to the __pmDecodeCreds function in p_creds.c; (2) the string byte number value to the __pmDecodeNameList function in p_pmns.c; (3) the numids value to the __pmDecodeIDList function in p_pmns.c; (4) unspecified vectors to the __pmDecodeProfile function in p_profile.c; the (5) status number value or (6) string number value to the __pmDecodeNameList function in p_pmns.c; (7) certain input to the __pmDecodeResult function in p_result.c; (8) the name length field (namelen) to the DecodeNameReq function in p_pmns.c; (9) a crafted PDU_FETCH request to the __pmDecodeFetch function in p_fetch.c; (10) the namelen field in the __pmDecodeInstanceReq function in p_instance.c; (11) the buflen field to the __pmDecodeText function in p_text.c; (12) PDU_INSTANCE packets to the __pmDecodeInstance in p_instance.c; or the (13) c_numpmid or (14) v_numval fields to the __pmDecodeLogControl function in p_lcontrol.c, which triggers integer overflows, heap-based buffer overflows, and/or buffer over-reads.

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Performance Co-Pilot 数字错误漏洞

Performance Co-Pilot (PCP)是由SGI开发的一套支持系统级性能监视的服务，其中的 一个应用程序叫做"pmpost"，默认安装时所有者为root，且设置了setuid位。 Performance Co-Pilot 3.6.5之前版本中存在安全漏洞，恶意用户可利用导致DoS（拒绝服务），进而操控受影响系统。该漏洞源于libpcp协议解码功能内存在一些整数溢出错误。攻击者可利用该漏洞导致缓冲区溢出。

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