SB2001010901 - Multiple vulnerabilities in Linux kernel

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) (CVE-ID: CVE-2015-1838)

The vulnerability allows a local authenticated user to read and manipulate data.

modules/serverdensity_device.py in SaltStack before 2014.7.4 does not properly handle files in /tmp.

2) Symlink attack (CVE-ID: CVE-2000-1134)

The vulnerability allows a local user to escalate privileges on the system.

Multiple shell programs on various Unix systems, including (1) tcsh, (2) csh, (3) sh, and (4) bash, follow symlinks when processing << redirects (aka here-documents or in-here documents), which allows local users to overwrite files of other users via a symlink attack.

Remediation

Install update from vendor's website.

References

• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.85
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.166
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.142