SB2015083109 - Improper input validation in Linux kernel udf
Published: August 31, 2015
Security Bulletin ID
SB2015083109
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper input validation (CVE-ID: CVE-2014-9731)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to improper input validation error within the udf_translate_to_linux(), udf_get_filename() and udf_put_filename() functions in fs/udf/unicode.c, within the udf_pc_to_char() and udf_symlink_filler() functions in fs/udf/symlink.c, within the udf_find_entry() function in fs/udf/namei.c, within the udf_readdir() function in fs/udf/dir.c. A local user can gain access to sensitive information.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0e5cc9a40ada6046e6bc3bdfcd0c0d7e4b706b14
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.2
- http://www.openwall.com/lists/oss-security/2015/06/03/4
- http://www.securityfocus.com/bid/75001
- https://bugzilla.redhat.com/show_bug.cgi?id=1228220
- https://github.com/torvalds/linux/commit/0e5cc9a40ada6046e6bc3bdfcd0c0d7e4b706b14
- https://source.android.com/security/bulletin/2017-07-01