USN-8524-1

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Source

https://ubuntu.com/security/notices/USN-8524-1

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8524-1.json

JSON Data

https://api.osv.dev/v1/vulns/USN-8524-1

Upstream

CVE-2026-7210

UBUNTU-CVE-2026-7210

Published

2026-07-09T15:11:48Z

Modified

2026-07-09T21:35:00.056272645Z

Summary

python2.7, python3.5 vulnerability

Details

It was discovered that Python did not use sufficient entropy for Expat hash-flooding protection in the xml.parsers.expat and xml.etree.ElementTree modules. An attacker could use this to cause a denial of service via a crafted XML document.

References

Affected packages

Ubuntu:Pro:16.04:LTS / python2.7

Package

Name: python2.7
Purl: pkg:deb/ubuntu/python2.7?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.7.12-1ubuntu0~16.04.18+esm20

Affected versions

2.*

2.7.10-4ubuntu1

2.7.10-4ubuntu2

2.7.11-2

2.7.11-3

2.7.11-4

2.7.11-6

2.7.11-7

2.7.11-7ubuntu1

2.7.12-1~16.04

2.7.12-1ubuntu0~16.04.1

2.7.12-1ubuntu0~16.04.2

2.7.12-1ubuntu0~16.04.3

2.7.12-1ubuntu0~16.04.4

2.7.12-1ubuntu0~16.04.8

2.7.12-1ubuntu0~16.04.9

2.7.12-1ubuntu0~16.04.11

2.7.12-1ubuntu0~16.04.12

2.7.12-1ubuntu0~16.04.13

2.7.12-1ubuntu0~16.04.14

2.7.12-1ubuntu0~16.04.16

2.7.12-1ubuntu0~16.04.18

2.7.12-1ubuntu0~16.04.18+esm1

2.7.12-1ubuntu0~16.04.18+esm2

2.7.12-1ubuntu0~16.04.18+esm3

2.7.12-1ubuntu0~16.04.18+esm4

2.7.12-1ubuntu0~16.04.18+esm5

2.7.12-1ubuntu0~16.04.18+esm6

2.7.12-1ubuntu0~16.04.18+esm7

2.7.12-1ubuntu0~16.04.18+esm8

2.7.12-1ubuntu0~16.04.18+esm9

2.7.12-1ubuntu0~16.04.18+esm10

2.7.12-1ubuntu0~16.04.18+esm11

2.7.12-1ubuntu0~16.04.18+esm12

2.7.12-1ubuntu0~16.04.18+esm13

2.7.12-1ubuntu0~16.04.18+esm15

2.7.12-1ubuntu0~16.04.18+esm16

2.7.12-1ubuntu0~16.04.18+esm17

2.7.12-1ubuntu0~16.04.18+esm18

2.7.12-1ubuntu0~16.04.18+esm19

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "idle-python2.7",
            "binary_version": "2.7.12-1ubuntu0~16.04.18+esm20"
        },
        {
            "binary_name": "libpython2.7",
            "binary_version": "2.7.12-1ubuntu0~16.04.18+esm20"
        },
        {
            "binary_name": "libpython2.7-minimal",
            "binary_version": "2.7.12-1ubuntu0~16.04.18+esm20"
        },
        {
            "binary_name": "libpython2.7-stdlib",
            "binary_version": "2.7.12-1ubuntu0~16.04.18+esm20"
        },
        {
            "binary_name": "libpython2.7-testsuite",
            "binary_version": "2.7.12-1ubuntu0~16.04.18+esm20"
        },
        {
            "binary_name": "python2.7",
            "binary_version": "2.7.12-1ubuntu0~16.04.18+esm20"
        },
        {
            "binary_name": "python2.7-examples",
            "binary_version": "2.7.12-1ubuntu0~16.04.18+esm20"
        },
        {
            "binary_name": "python2.7-minimal",
            "binary_version": "2.7.12-1ubuntu0~16.04.18+esm20"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8524-1.json"

cves_map

{
    "cves": [],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}

Ubuntu:Pro:16.04:LTS / python3.5

Package

Name: python3.5
Purl: pkg:deb/ubuntu/python3.5?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.5.2-2ubuntu0~16.04.13+esm23

Affected versions

3.*

3.5.0-3

3.5.0-3ubuntu1

3.5.1~rc1-2ubuntu1

3.5.1-1

3.5.1-2

3.5.1-3

3.5.1-5

3.5.1-6ubuntu1

3.5.1-6ubuntu2

3.5.1-9ubuntu1

3.5.1-10

3.5.2-2~16.01

3.5.2-2~16.04

3.5.2-2ubuntu0~16.04.1

3.5.2-2ubuntu0~16.04.2

3.5.2-2ubuntu0~16.04.3

3.5.2-2ubuntu0~16.04.4

3.5.2-2ubuntu0~16.04.5

3.5.2-2ubuntu0~16.04.8

3.5.2-2ubuntu0~16.04.9

3.5.2-2ubuntu0~16.04.10

3.5.2-2ubuntu0~16.04.11

3.5.2-2ubuntu0~16.04.12

3.5.2-2ubuntu0~16.04.13

3.5.2-2ubuntu0~16.04.13+esm1

3.5.2-2ubuntu0~16.04.13+esm2

3.5.2-2ubuntu0~16.04.13+esm3

3.5.2-2ubuntu0~16.04.13+esm5

3.5.2-2ubuntu0~16.04.13+esm6

3.5.2-2ubuntu0~16.04.13+esm7

3.5.2-2ubuntu0~16.04.13+esm8

3.5.2-2ubuntu0~16.04.13+esm9

3.5.2-2ubuntu0~16.04.13+esm10

3.5.2-2ubuntu0~16.04.13+esm11

3.5.2-2ubuntu0~16.04.13+esm12

3.5.2-2ubuntu0~16.04.13+esm13

3.5.2-2ubuntu0~16.04.13+esm14

3.5.2-2ubuntu0~16.04.13+esm15

3.5.2-2ubuntu0~16.04.13+esm16

3.5.2-2ubuntu0~16.04.13+esm17

3.5.2-2ubuntu0~16.04.13+esm18

3.5.2-2ubuntu0~16.04.13+esm19

3.5.2-2ubuntu0~16.04.13+esm20

3.5.2-2ubuntu0~16.04.13+esm21

3.5.2-2ubuntu0~16.04.13+esm22

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "idle-python3.5",
            "binary_version": "3.5.2-2ubuntu0~16.04.13+esm23"
        },
        {
            "binary_name": "libpython3.5",
            "binary_version": "3.5.2-2ubuntu0~16.04.13+esm23"
        },
        {
            "binary_name": "libpython3.5-minimal",
            "binary_version": "3.5.2-2ubuntu0~16.04.13+esm23"
        },
        {
            "binary_name": "libpython3.5-stdlib",
            "binary_version": "3.5.2-2ubuntu0~16.04.13+esm23"
        },
        {
            "binary_name": "libpython3.5-testsuite",
            "binary_version": "3.5.2-2ubuntu0~16.04.13+esm23"
        },
        {
            "binary_name": "python3.5",
            "binary_version": "3.5.2-2ubuntu0~16.04.13+esm23"
        },
        {
            "binary_name": "python3.5-examples",
            "binary_version": "3.5.2-2ubuntu0~16.04.13+esm23"
        },
        {
            "binary_name": "python3.5-minimal",
            "binary_version": "3.5.2-2ubuntu0~16.04.13+esm23"
        },
        {
            "binary_name": "python3.5-venv",
            "binary_version": "3.5.2-2ubuntu0~16.04.13+esm23"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "cves": [],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8524-1.json"