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CVE-2021-32555 Details

Description

It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the xorg-hwe-18.04 package apport hooks, it could expose private data to other local users.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CNA: [email protected]CVSS-B:7.3 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904	CVE	Issue TrackingVendor Advisory
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904	[email protected]	Issue TrackingVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-59	Improper Link Resolution Before File Access ('Link Following')	[email protected]
CWE-59	Improper Link Resolution Before File Access ('Link Following')	[email protected]
CWE-61	UNIX Symbolic Link (Symlink) Following	[email protected]

Affected Products

Product	Versions
canonical ubuntu linux	18.04 20.04 20.10 21.04 21.10
CPE cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:20.10:::::::* cpe:2.3:o:canonical:ubuntu_linux:21.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:21.10:::::::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jun 16, 2021	Initial Analysis	[email protected]