Detections
Analytics
Alpine: squid: security update to 4.11-r0
critical Tenable Self-Hosted Container Security Plugin ID 407228
Description
There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:- 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. (CVE-2019-12519)
- An issue was discovered in Squid through 4.7. When Squid is parsing ESI, it keeps the ESI elements in
ESIContext. ESIContext contains a buffer for holding a stack of ESIElements. When a new ESIElement is
parsed, it is added via addStackElement. addStackElement has a check for the number of elements in this
buffer, but it's off by 1, leading to a Heap Overflow of 1 element. The overflow is within the same
structure so it can't affect adjacent memory blocks, and thus just leads to a crash while processing.
(CVE-2019-12521)
- 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). (CVE-2020-11945)
See Also
https://security.alpinelinux.org/vuln/CVE-2019-12519
Plugin Details
Severity: Critical
ID: 407228
Version: Revision 1.37
Type: Local
Published: 10/31/2023
Updated: 7/2/2026
Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 57.12
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2020-11945
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 4/15/2020