VULNERABILITY INTELLIGENCE

CVE-2013-2175

CVSS score5 MEDIUM
EPSS probability3.59%
CISA KEVNot currently listed
Published2013-08-19
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P

Description

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.

Weakness classification

  • CWE-20: Improper Input Validation
  • CWE-284: Improper Access Control

Primary references