CVE-2018-1172
Published: 16 May 2018
This vulnerability allows remote attackers to deny service on vulnerable installations of The Squid Software Foundation Squid 3.5.27-20180318. Authentication is not required to exploit this vulnerability. The specific flaw exists within ClientRequestContext::sslBumpAccessCheck(). A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition to users of the system. Was ZDI-CAN-6088.
Notes
Author | Note |
---|---|
mdeslaur | squid3 in Ubuntu is not built with OpenSSL support, so Ubuntu isn't actually vulnerable to this issue. |
Priority
Status
Package | Release | Status |
---|---|---|
squid3 Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
bionic |
Not vulnerable
(not built with --with-openssl)
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was not-affected [not built with --with-openssl])
|
|
upstream |
Needs triage
|
|
xenial |
Not vulnerable
(not built with --with-openssl)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.9 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |