CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
Percentile
96.0%
The try_parse_v4_netmask function in hostmask.c in IRCD-Hybrid before 8.0.6
does not properly validate masks, which allows remote attackers to cause a
denial of service (crash) via a mask that causes a negative number to be
parsed.