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CVE-2016-9595: A flaw was found in katello-debug before 3.4.0 where certain scripts and log files used insecure temporary fil

39
Routine
HIGH 7.3WATCHLISTUPGRADEDOWNGRADEDOWNGRADE

CVE-2016-9595 is a high-severity flaw (CVSS 7.3) affecting katello, satellite, satellite capsule. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in katello-debug before 3.4.0 where certain scripts and log files used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files.

Why this priority

  • High severity
  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score7.3 (High)
Attack vectorLocal
Attack complexityLow
Privileges neededLow
User interactionRequired
EPSS exploit chance0.4% (top 65%)
CISA exploited listNo
WeaknessCWE-377, CWE-59
Published2018-07-27
Last modified2026-06-17
Publisher (CNA): Red Hat, Inc. · Vendor: redhat · theforeman

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

theforeman katello UPGRADE
Affected: < 3.4.0
Fixed in: 3.4.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy katello || rpm -q katello || katello --version
2. UPGRADE to 3.4.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade katello
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade katello
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
redhat satellite DOWNGRADE
Affected: 6.3
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.3
1. Check installed version
apt-cache policy satellite || rpm -q satellite || satellite --version
2. No fixed release: DOWNGRADE to a release before 6.3 (Debian / Ubuntu)
apt-cache madison satellite sudo apt install satellite=<VERSION_BEFORE_6.3> sudo apt-mark hold satellite
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list satellite sudo dnf downgrade satellite-<VERSION_BEFORE_6.3> sudo dnf versionlock add satellite
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.
redhat satellite capsule DOWNGRADE
Affected: 6.3
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.3
1. Check installed version
apt-cache policy satellite-capsule || rpm -q satellite-capsule || satellite-capsule --version
2. No fixed release: DOWNGRADE to a release before 6.3 (Debian / Ubuntu)
apt-cache madison satellite-capsule sudo apt install satellite-capsule=<VERSION_BEFORE_6.3> sudo apt-mark hold satellite-capsule
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list satellite-capsule sudo dnf downgrade satellite-capsule-<VERSION_BEFORE_6.3> sudo dnf versionlock add satellite-capsule
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-2016-9595?

katello: upgrade to 3.4.0; satellite: downgrade or apply the listed mitigation; satellite capsule: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-9595 being exploited?

CVE-2016-9595 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-2016-9595 affect?

CVE-2016-9595 affects katello, satellite, satellite capsule. Severity is high (CVSS 7.3). A flaw was found in katello-debug before 3.4.0 where certain scripts and log files used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary f

How urgent is CVE-2016-9595?

Priority 39/100. High severity; On your watchlist

Related CVEs

References

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