CVE-2021-3709

high-risk

Published 2021-10-01

Function check_attachment_for_errors() in file data/general-hooks/ubuntu.py could be tricked into exposing private data via a constructed crash file. This issue affects: apport 2.14.1 versions prior to 2.14.1-0ubuntu3.29+esm8; 2.20.1 versions prior to 2.20.1-0ubuntu2.30+esm2; 2.20.9 versions prior to 2.20.9-0ubuntu7.26; 2.20.11 versions prior to 2.20.11-0ubuntu27.20; 2.20.11 versions prior to 2.20.11-0ubuntu65.3;

Do I need to act?

0.07% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.5/10 Medium

LOCAL / LOW complexity

Affected Products (20)

Apport

Affected Vendors

Canonical

References (8)

Exploit https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1934308

Third Party Advisory https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3709

Vendor Advisory https://ubuntu.com/security/notices/USN-5077-1

Vendor Advisory https://ubuntu.com/security/notices/USN-5077-2

Exploit https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1934308

Third Party Advisory https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3709

Vendor Advisory https://ubuntu.com/security/notices/USN-5077-1

Vendor Advisory https://ubuntu.com/security/notices/USN-5077-2

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high-risk

Severity 21/34 · High

Exploitability 0/34 · Minimal

Exposure 33/34 · Critical