Information disclosure in Linux kernel - CVE-2014-1739
Published: June 23, 2014 / Updated: August 11, 2020
Vulnerability identifier: #VU41534
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2014-1739
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local #AU# to gain access to sensitive information.
The media_device_enum_entities function in drivers/media/media-device.c in the Linux kernel before 3.14.6 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel memory by leveraging /dev/media0 read access for a MEDIA_IOC_ENUM_ENTITIES ioctl call.
How to mitigate CVE-2014-1739
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e6a623460e5fc960ac3ee9f946d3106233fd28d8
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html
- http://secunia.com/advisories/59597
- http://speirofr.appspot.com/cve-2014-1739-kernel-infoleak-vulnerability-in-media_enum_entities.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.6
- http://www.openwall.com/lists/oss-security/2014/06/15/1
- http://www.securityfocus.com/bid/68048
- http://www.securitytracker.com/id/1038201
- http://www.ubuntu.com/usn/USN-2259-1
- http://www.ubuntu.com/usn/USN-2261-1
- http://www.ubuntu.com/usn/USN-2263-1
- http://www.ubuntu.com/usn/USN-2264-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1109774
- https://github.com/torvalds/linux/commit/e6a623460e5fc960ac3ee9f946d3106233fd28d8
- https://source.android.com/security/bulletin/2017-04-01