What’s Vulnerable › Vulnerabilities

CVE-2014-7826

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2014-11-10 · updated 2026-06-17
• Weakness: CWE-476

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.

Affected products

• Linux kernel: from 2.6.32 before 3.2.65; from 3.3 before 3.4.106; from 3.5 before 3.10.60; from 3.11 before 3.12.33; from 3.13 before 3.14.24; from 3.15 before 3.16.35 — fixed in 3.10.60, 3.12.33, 3.14.24, 3.16.35, 3.17.3, 3.2.65
• openSUSE Evergreen: 11.4
• SUSE Linux Enterprise: 11-sp2

How to fix

Upgrade to a fixed version: Linux kernel 3.10.60, 3.12.33, 3.14.24, 3.16.35. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=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
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=086ba77a6db00ed858ff07451bedee197df868c9

Get alerted when CVE-2014-7826 or the next vulnerability affects your stack