Ubuntu.comUB:CVE-2019-12525CVE-2019-12525
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.162 Low
EPSS
Percentile
95.9%
An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7.
When Squid is configured to use Digest authentication, it parses the header
Proxy-Authorization. It searches for certain tokens such as domain, uri,
and qop. Squid checks if this token’s value starts with a quote and ends
with one. If so, it performs a memcpy of its length minus 2. Squid never
checks whether the value is just a single quote (which would satisfy its
requirements), leading to a memcpy of its length minus 1.
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.162 Low
EPSS
Percentile
95.9%