NULL pointer dereference in dircproxy - CVE-2007-5226
Published: June 25, 2020
Vulnerability identifier: #VU29269
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2007-5226
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in irc_server.c in dircproxy. A remote attacker can trigger denial of service conditions via an ACTION command without a parameter, which triggers a NULL pointer dereference, as demonstrated using a blank /me message from irssi.
Affected software
dircproxy
dircproxy (Alpine package)
dircproxy (Alpine package)
How to mitigate CVE-2007-5226
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
dircproxy (Alpine package) - update to 1.2.0_rc1-r0