CVE-2014-7826 json
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…
published 11y ago modified 4mo ago also EUVD-2014-7692
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- linux linux_kernel 3.2.65, 3.4.106, 3.10.60, 3.12.33, 3.14.24, 3.16.35, 3.17.3
- linux Debian 14, Debian 13, Debian 12 3.16.7-ckt2-1
debian advisories DEBIAN-CVE-2014-7826
- linux Ubuntu 14.04 LTS 3.13.0-41.70
- linux-lts-utopic Ubuntu 14.04 LTS 3.16.0-26.35~14.04.1
ubuntu advisories UBUNTU-CVE-2014-7826
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- kernel RHEL 6 2.6.32-504.16.2.el6
- perf RHEL 6 2.6.32-504.16.2.el6
- python-perf RHEL 6 2.6.32-504.16.2.el6
- kernel-kdump RHEL 6 2.6.32-504.16.2.el6
- kernel-firmware RHEL 6 2.6.32-504.16.2.el6
- kernel-bootwrapper RHEL 6 2.6.32-504.16.2.el6
- kernel-abi-whitelists RHEL 6 2.6.32-504.16.2.el6
- kernel-debuginfo-common-i686 RHEL 6 2.6.32-504.16.2.el6
red hat advisories RHSA-2015:0864RHSA-2015:0290RHSA-2014:1943
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Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2014-7826 updated cvss 4.0
kernel: insufficient syscall number validation in perf and ftrace subsystems
-
Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-229.el7, kernel 3.10.0-229.el7, kernel-tools 3.10.0-229.el7, kernel-tools-libs 3.10.0-229.el7, kernel-abi-whitelists 3.10.0-229.el7, kernel-debuginfo-common-x86_64 3.10.0-229.el7 Red Hat Enterprise Linux Client Optional (v. 7) python-perf 3.10.0-229.el7, kernel-debuginfo-common-x86_64 3.10.0-229.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-229.el7, kernel 3.10.0-229.el7, kernel-tools 3.10.0-229.el7, kernel-tools-libs 3.10.0-229.el7, kernel-abi-whitelists 3.10.0-229.el7, kernel-debuginfo-common-x86_64 3.10.0-229.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-perf 3.10.0-229.el7, kernel-debuginfo-common-x86_64 3.10.0-229.el7fixed: vendor fix RHSA-2015:0290
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Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-504.16.2.el6, kernel 2.6.32-504.16.2.el6, kernel-firmware 2.6.32-504.16.2.el6, kernel-abi-whitelists 2.6.32-504.16.2.el6, kernel-debuginfo-common-i686 2.6.32-504.16.2.el6, kernel-debuginfo-common-x86_64 2.6.32-504.16.2.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-504.16.2.el6, kernel-debuginfo-common-i686 2.6.32-504.16.2.el6, kernel-debuginfo-common-x86_64 2.6.32-504.16.2.el6 Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-504.16.2.el6, kernel 2.6.32-504.16.2.el6, kernel-firmware 2.6.32-504.16.2.el6, kernel-abi-whitelists 2.6.32-504.16.2.el6, kernel-debuginfo-common-x86_64 2.6.32-504.16.2.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-504.16.2.el6, kernel-debuginfo-common-x86_64 2.6.32-504.16.2.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-504.16.2.el6, kernel 2.6.32-504.16.2.el6, kernel-kdump 2.6.32-504.16.2.el6, kernel-firmware 2.6.32-504.16.2.el6, kernel-bootwrapper 2.6.32-504.16.2.el6, kernel-abi-whitelists 2.6.32-504.16.2.el6, +4 morefixed: vendor fix RHSA-2015:0864
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Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-229.el7, kernel 3.10.0-229.el7, kernel-kdump 3.10.0-229.el7, kernel-tools 3.10.0-229.el7, kernel-tools-libs 3.10.0-229.el7, kernel-bootwrapper 3.10.0-229.el7, +4 morefixed: vendor fix RHSA-2015:0290
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Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-504.16.2.el6, kernel-debuginfo-common-i686 2.6.32-504.16.2.el6, kernel-debuginfo-common-ppc64 2.6.32-504.16.2.el6, kernel-debuginfo-common-s390x 2.6.32-504.16.2.el6, kernel-debuginfo-common-x86_64 2.6.32-504.16.2.el6fixed: vendor fix RHSA-2015:0864
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Red Hat Enterprise Linux Server Optional (v. 7) python-perf 3.10.0-229.el7, kernel-debuginfo-common-ppc64 3.10.0-229.el7, kernel-debuginfo-common-s390x 3.10.0-229.el7, kernel-debuginfo-common-x86_64 3.10.0-229.el7fixed: vendor fix RHSA-2015:0290
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Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-504.16.2.el6, kernel 2.6.32-504.16.2.el6, kernel-firmware 2.6.32-504.16.2.el6, kernel-abi-whitelists 2.6.32-504.16.2.el6, kernel-debuginfo-common-i686 2.6.32-504.16.2.el6, kernel-debuginfo-common-x86_64 2.6.32-504.16.2.el6fixed: vendor fix RHSA-2015:0864
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Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-229.el7, kernel 3.10.0-229.el7, kernel-tools 3.10.0-229.el7, kernel-tools-libs 3.10.0-229.el7, kernel-abi-whitelists 3.10.0-229.el7, kernel-debuginfo-common-x86_64 3.10.0-229.el7fixed: vendor fix RHSA-2015:0290
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Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-504.16.2.el6, kernel-debuginfo-common-i686 2.6.32-504.16.2.el6, kernel-debuginfo-common-x86_64 2.6.32-504.16.2.el6fixed: vendor fix RHSA-2015:0864
show 3 moreshow fewer
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Red Hat Enterprise Linux Workstation Optional (v. 7) python-perf 3.10.0-229.el7, kernel-debuginfo-common-x86_64 3.10.0-229.el7fixed: vendor fix RHSA-2015:0290
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Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.58-rt62.58.el6rt, kernel-rt-trace 3.10.58-rt62.58.el6rt, kernel-rt-vanilla 3.10.58-rt62.58.el6rt, kernel-rt-firmware 3.10.58-rt62.58.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.58-rt62.58.el6rtfixed: vendor fix RHSA-2014:1943
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Red Hat Enterprise Linux 5 kernelnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/torvalds/linux/commit/086ba77a6db00ed858ff07451bedee197df868c9 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
- Technology feeds
References
-
github.com
/torvalds/linux/commit/086ba77a6db00ed858ff07451bedee197df868c9
exploit, patch, third-party-advisory
-
openwall.com
/lists/oss-security/2014/11/06/11
mailing-list, patch, third-party-advisory
-
bugzilla.redhat.com
/show_bug.cgi?id=1161565
issue-tracking, patch, third-party-advisory
-
rhn.redhat.com
/errata/RHSA-2015-0864.html
vendor-advisory, third-party-advisory
-
rhn.redhat.com
/errata/RHSA-2015-0290.html
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2015-03/msg00010.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2015-03/msg00025.html
vendor-advisory, mailing-list, third-party-advisory
-
rhn.redhat.com
/errata/RHSA-2014-1943.html
vendor-advisory, third-party-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/98556
vdb-entry, third-party-advisory
-
securityfocus.com
/bid/70971
vdb-entry, third-party-advisory
- git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=086ba77a6db00ed858ff07451bedee197df868c9
Sources
- CVE List CVE-2014-7826
- NVD CVE-2014-7826
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.