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ubuntucveUbuntu.comUB:CVE-2019-12519
HistoryApr 15, 2020 - 12:00 a.m.

CVE-2019-12519

2020-04-1500:00:00
ubuntu.com
ubuntu.com
14

7.5 High

CVSS2

Attack Vector

NETWORK

Attack 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

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

0.013 Low

EPSS

Percentile

85.8%

An issue was discovered in Squid through 4.7. When handling the tag
esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This
function uses a fixed stack buffer to hold the expression while it’s being
evaluated. When processing the expression, it could either evaluate the top
of the stack, or add a new member to the stack. When adding a new member,
there is no check to ensure that the stack won’t overflow.

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

7.5 High

CVSS2

Attack Vector

NETWORK

Attack 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

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

0.013 Low

EPSS

Percentile

85.8%