SB2014111602 - Race condition in Python
Published: November 16, 2014 Updated: August 9, 2020
Security Bulletin ID
SB2014111602
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Race condition (CVE-ID: CVE-2014-2667)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Race condition in the _get_masked_mode function in Lib/os.py in Python 3.2 through 3.5, when exist_ok is set to true and multiple threads are used, might allow local users to bypass intended file permissions by leveraging a separate application vulnerability before the umask has been set to the expected value.
Remediation
Install update from vendor's website.
References
- http://bugs.python.org/issue21082
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00007.html
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00008.html
- http://www.openwall.com/lists/oss-security/2014/03/28/15
- http://www.openwall.com/lists/oss-security/2014/03/29/5
- http://www.openwall.com/lists/oss-security/2014/03/30/4
- https://security.gentoo.org/glsa/201503-10