Denial of Service Vulnerability in HAProxy with Negative Occurrence Count

CVE-2013-2175 · MEDIUM Severity

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

HAProxy 1.4 before 1.4.24 and 1.5 before 1.5-dev19, when configured to use hdr_ip or other "hdr_*" functions with a negative occurrence count, allows remote attackers to cause a denial of service (negative array index usage and crash) via an HTTP header with a certain number of values, related to the MAX_HDR_HISTORY variable.

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