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CVE-2015-8327: Incomplete blacklist vulnerability in util.c in foomatic-rip in cups-filters 1.0.42 before 1.2.0 and in foomat

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HIGH 7.5WATCHLISTMITIGATEMITIGATEMITIGATE

CVE-2015-8327 is a high-severity flaw (CVSS 7.5) affecting enterprise linux desktop, enterprise linux hpc node, enterprise linux server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Incomplete blacklist vulnerability in util.c in foomatic-rip in cups-filters 1.0.42 before 1.2.0 and in foomatic-filters in Foomatic 4.0.x allows remote attackers to execute arbitrary commands via ` (backtick) characters in a print job.

Why this priority

  • High severity
  • EPSS top 4%: very likely to be exploited
  • On your watchlist

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

Risk facts

CVSS score7.5 (High)
EPSS exploit chance10.6% (top 4%)
CISA exploited listNo
Published2015-12-17
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: linuxfoundation · redhat

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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

redhat enterprise linux desktop MITIGATE
Affected: 6.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.0
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.
redhat enterprise linux hpc node MITIGATE
Affected: 6.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.0
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.
redhat enterprise linux server MITIGATE
Affected: 6.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.0
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.
redhat enterprise linux server eus MITIGATE
Affected: 6.7.z
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.7.z
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.
redhat enterprise linux workstation MITIGATE
Affected: 6.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.0
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.
linuxfoundation foomatic-filters DOWNGRADE
Affected: 4.0.0 · 4.0.1 · 4.0.2 · 4.0.3 · 4.0.4 · 4.0.5 · 4.0.6 · 4.0.7
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.0.0
1. Check installed version
apt-cache policy foomatic-filters || rpm -q foomatic-filters || foomatic-filters --version
2. No fixed release: DOWNGRADE to a release before 4.0.0 (Debian / Ubuntu)
apt-cache madison foomatic-filters sudo apt install foomatic-filters=<VERSION_BEFORE_4.0.0> sudo apt-mark hold foomatic-filters
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list foomatic-filters sudo dnf downgrade foomatic-filters-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add foomatic-filters
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-2015-8327?

enterprise linux desktop: mitigate or apply the listed mitigation; enterprise linux hpc node: mitigate or apply the listed mitigation; enterprise linux server: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-8327 being exploited?

CVE-2015-8327 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-2015-8327 affect?

CVE-2015-8327 affects enterprise linux desktop, enterprise linux hpc node, enterprise linux server. Severity is high (CVSS 7.5). Incomplete blacklist vulnerability in util.c in foomatic-rip in cups-filters 1.0.42 before 1.2.0 and in foomatic-filters in Foomatic 4.0.x allows remote attackers to execute arbitrary commands via ` (backtick) characters in a print job.

How urgent is CVE-2015-8327?

Priority 55/100. High severity; EPSS top 4%: very likely to be exploited; On your watchlist

Related CVEs

References

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