UBUNTU-CVE-2019-12526

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Source
https://ubuntu.com/security/CVE-2019-12526
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12526.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2019-12526
Upstream
Downstream
Related
Published
2019-11-26T17:15:00Z
Modified
2025-09-08T16:45:27Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap.

References

Affected packages

Ubuntu:16.04:LTS / squid3

Package

Name
squid3
Purl
pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.9?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.12-1ubuntu7.9

Affected versions

3.*

3.3.8-1ubuntu16
3.3.8-1ubuntu17
3.5.12-1ubuntu6
3.5.12-1ubuntu7
3.5.12-1ubuntu7.1
3.5.12-1ubuntu7.2
3.5.12-1ubuntu7.3
3.5.12-1ubuntu7.4
3.5.12-1ubuntu7.5
3.5.12-1ubuntu7.6
3.5.12-1ubuntu7.7
3.5.12-1ubuntu7.8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.5.12-1ubuntu7.9",
            "binary_name": "squid"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.9",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.9",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.9",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.9",
            "binary_name": "squid3"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.9",
            "binary_name": "squidclient"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / squid3

Package

Name
squid3
Purl
pkg:deb/ubuntu/squid3@3.5.27-1ubuntu1.4?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.27-1ubuntu1.4

Affected versions

3.*

3.5.23-5ubuntu1
3.5.23-5ubuntu2
3.5.27-1ubuntu1
3.5.27-1ubuntu1.1
3.5.27-1ubuntu1.2
3.5.27-1ubuntu1.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.5.27-1ubuntu1.4",
            "binary_name": "squid"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.4",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.4",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.4",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.4",
            "binary_name": "squid3"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.4",
            "binary_name": "squidclient"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / squid

Package

Name
squid
Purl
pkg:deb/ubuntu/squid@4.9-2ubuntu1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.9-2ubuntu1

Affected versions

4.*

4.8-1ubuntu2
4.8-1ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.9-2ubuntu1",
            "binary_name": "squid"
        },
        {
            "binary_version": "4.9-2ubuntu1",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "4.9-2ubuntu1",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "4.9-2ubuntu1",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "4.9-2ubuntu1",
            "binary_name": "squid3"
        },
        {
            "binary_version": "4.9-2ubuntu1",
            "binary_name": "squidclient"
        }
    ],
    "availability": "No subscription required"
}