CVE-2016-8605 Information

Description

The mkdir procedure of GNU Guile temporarily changed the process’ umask to zero. During that time window in a multithreaded application other threads could end up creating files with insecure permissions. For example mkdir without the optional mode argument would create directories as 0777. This is fixed in Guile 2.0.13. Prior versions are affected.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Reference

http://www.openwall.com/lists/oss-security/2016/10/12/1 http://www.securityfocus.com/bid/93510 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6QTAGSDCTYXTABAA77BQJGNKOOBRV4DK/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNVE5N24FLWDYBQ3LAFMF6BFCWKDO7VM/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJP5S36GTXMDEBXWF6LKKV76DSLNQG44/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

5.3