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ubuntucveUbuntu.comUB:CVE-2020-11945
HistoryApr 23, 2020 - 12:00 a.m.

CVE-2020-11945

2020-04-2300:00:00
ubuntu.com
ubuntu.com
14

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

0.123 Low

EPSS

Percentile

95.3%

An issue was discovered in Squid before 5.0.2. A remote attacker can replay
a sniffed Digest Authentication nonce to gain access to resources that are
otherwise forbidden. This occurs because the attacker can overflow the
nonce reference counter (a short integer). Remote code execution may occur
if the pooled token credentials are freed (instead of replayed as valid
credentials).

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchsquid< 4.10-1ubuntu1.1UNKNOWN
ubuntu21.04noarchsquid< 4.10-1ubuntu2UNKNOWN
ubuntu19.10noarchsquid< 4.8-1ubuntu2.3UNKNOWN
ubuntu20.10noarchsquid< 4.10-1ubuntu2UNKNOWN
ubuntu18.04noarchsquid3< 3.5.27-1ubuntu1.6UNKNOWN
ubuntu16.04noarchsquid3< 3.5.12-1ubuntu7.11UNKNOWN

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

0.123 Low

EPSS

Percentile

95.3%