CVE-2014-7826 Information

Description

kernel/trace/trace_syscalls.c in the Linux kernel through 3.17.2 does not properly handle private syscall numbers during use of the ftrace subsystem which allows local users to gain privileges or cause a denial of service (invalid pointer dereference) via a crafted application.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=086ba77a6db00ed858ff07451bedee197df868c9 http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html http://rhn.redhat.com/errata/RHSA-2014-1943.html http://rhn.redhat.com/errata/RHSA-2015-0290.html http://rhn.redhat.com/errata/RHSA-2015-0864.html http://www.openwall.com/lists/oss-security/2014/11/06/11 http://www.securityfocus.com/bid/70971 https://bugzilla.redhat.com/show_bug.cgi?id=1161565 https://exchange.xforce.ibmcloud.com/vulnerabilities/98556 https://github.com/torvalds/linux/commit/086ba77a6db00ed858ff07451bedee197df868c9

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8