CVE-2013-1062: ubuntu-system-service 0.2.4 before 0.2.4.1

Routine

MEDIUM 4.6WATCHLISTMITIGATEDOWNGRADE

CVE-2013-1062 is a medium-severity flaw (CVSS 4.6) affecting ubuntu linux, ubuntu-system-service. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ubuntu-system-service 0.2.4 before 0.2.4.1. 0.2.3 before 0.2.3.1, and 0.2.2 before 0.2.2.1 does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.

Why this priority

On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.6 (Medium)
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-264
Published	2013-10-03
Last modified	2026-06-16

Publisher (CNA): Canonical Ltd. · Vendor: canonical · michael vogt

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-10-03 21:55 UTCPublished CVE record published
2026-06-16 23:50 UTCUpdated Record last modified

canonical ubuntu linux MITIGATE

Affected: 12.04 · 12.10 · 13.04

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.04

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

michael vogt ubuntu-system-service DOWNGRADE

Affected: 0.2.2 · 0.2.3 · 0.2.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.2.2

1. Check installed version

apt-cache policy ubuntu-system-service || rpm -q ubuntu-system-service || ubuntu-system-service --version

2. No fixed release: DOWNGRADE to a release before 0.2.2 (Debian / Ubuntu)

apt-cache madison ubuntu-system-service sudo apt install ubuntu-system-service=<VERSION_BEFORE_0.2.2> sudo apt-mark hold ubuntu-system-service

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ubuntu-system-service sudo dnf downgrade ubuntu-system-service-<VERSION_BEFORE_0.2.2> sudo dnf versionlock add ubuntu-system-service

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2013-1062?

ubuntu linux: mitigate or apply the listed mitigation; ubuntu-system-service: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-1062 being exploited?

CVE-2013-1062 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2013-1062 affect?

CVE-2013-1062 affects ubuntu linux, ubuntu-system-service. Severity is medium (CVSS 4.6). ubuntu-system-service 0.2.4 before 0.2.4.1. 0.2.3 before 0.2.3.1, and 0.2.2 before 0.2.2.1 does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging

How urgent is CVE-2013-1062?

Priority 28/100. On your watchlist

Software pages

Ubuntu vulnerabilities

Related CVEs

CVE-2026-47331 HIGH 7.8 MITIGATE Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list
CVE-2026-47333 HIGH 7.8 MITIGATE Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si
CVE-2026-47328 MEDIUM 6.1 MITIGATE Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer whic
CVE-2026-47332 MEDIUM 5.5 MITIGATE Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern
CVE-2026-47326 MEDIUM 5.5 MITIGATE Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to Ap

References

← Back to latest CVEs