CVE-2013-2175
MEDIUM severity · CVSS 5 · Improper input validation
5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impactNone
Availability impact—
Exploit probability (EPSS)3%
AV:N/AC:L/Au:N/C:N/I:N/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://marc.info/?l=haproxy&m=137147915029705&w=2 ↗
Additional information
- NVD record
- http://marc.info/?l=haproxy&m=137147915029705&w=2Patch
- http://rhn.redhat.com/errata/RHSA-2013-1120.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2013-1204.htmlAdvisory
- http://secunia.com/advisories/54344
- http://www.debian.org/security/2013/dsa-2711Advisory
- http://www.ubuntu.com/usn/USN-1889-1Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=974259