Ubuntu.comUB:CVE-2018-1172CVE-2018-1172
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
80.7%
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. |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
80.7%