CVE-2004-1337: The POSIX Capability Linux Security Module (LSM) for Linux kernel 2.6 does not properly handle the credentials
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Routine
HIGH 7.2WATCHLISTDOWNGRADEMITIGATEMITIGATE
CVE-2004-1337 is a high-severity flaw (CVSS 7.2) affecting realtime linux security module, linux, ubuntu linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The POSIX Capability Linux Security Module (LSM) for Linux kernel 2.6 does not properly handle the credentials of a process that is launched before the module is loaded, which allows local users to gain privileges.
Why this priority
High severity
On your watchlist
No fix is published yet: follow the downgrade or mitigation steps.
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.
conectiva linux MITIGATE
Affected: 10.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 10.0
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.
ubuntu ubuntu linux MITIGATE
Affected: 4.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.1
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.
Verify at the official sourceNVD · 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-2004-1337?
realtime linux security module: downgrade or apply the listed mitigation; linux: mitigate or apply the listed mitigation; ubuntu linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2004-1337 being exploited?
CVE-2004-1337 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-2004-1337 affect?
CVE-2004-1337 affects realtime linux security module, linux, ubuntu linux. Severity is high (CVSS 7.2). The POSIX Capability Linux Security Module (LSM) for Linux kernel 2.6 does not properly handle the credentials of a process that is launched before the module is loaded, which allows local users to gain privileges.
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