Read the docs
TI-2016-06053 Aliases CVE-2016-7042GHSA-qx4h-3xrh-8hmg

The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2…

Priority LOW 28CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 19 fixed, 1 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is enabled, uses an incorrect buffer size for certain timeout data, which allows local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file.

Why it matters now

EPSS 0.00395 33rd percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 19 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 4.8.2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 4.8.2 Vulnerable ·Linux

Remediation

Red Hat 4 advisories

  • RHSA-2017:2669 Released 2017-09-06 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt, kernel-rt-debug-1:3.10.0-693.2.1.rt56.585.el6rt, kernel-rt-debug-devel-1:3.10.0-693.2.1.rt56.585.el6rt +7
  • RHSA-2017:1842 Released 2017-08-01 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-debug-3.10.0-693.el7 +7
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-debug-3.10.0-693.el7 +7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.el7
    • Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-bootwrapper-3.10.0-693.el7 +10
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-693.el7, kernel-doc-3.10.0-693.el7, kernel-tools-libs-devel-3.10.0-693.el7
    • Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-debug-3.10.0-693.el7 +7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.el7
  • RHSA-2017:2077 Released 2017-08-01 · Red Hat rating Important
    kernel-rt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-693.rt56.617.el7, kernel-rt-debug-3.10.0-693.rt56.617.el7, kernel-rt-debug-devel-3.10.0-693.rt56.617.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-693.rt56.617.el7, kernel-rt-debug-3.10.0-693.rt56.617.el7, kernel-rt-debug-devel-3.10.0-693.rt56.617.el7 +7
Show 1 more Red Hat advisories
  • RHSA-2017:0817 Released 2017-03-21 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-696.el6, kernel-abi-whitelists-2.6.32-696.el6, kernel-debug-2.6.32-696.el6 +6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf-2.6.32-696.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-696.el6, kernel-abi-whitelists-2.6.32-696.el6, kernel-debug-2.6.32-696.el6 +6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf-2.6.32-696.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-696.el6, kernel-abi-whitelists-2.6.32-696.el6, kernel-bootwrapper-2.6.32-696.el6 +9
    • Red Hat Enterprise Linux Server Optional (v. 6) python-perf-2.6.32-696.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-696.el6, kernel-abi-whitelists-2.6.32-696.el6, kernel-debug-2.6.32-696.el6 +6
    • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf-2.6.32-696.el6

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2017:0817
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2017:0817
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2017:0817
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2017:0817
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:0817
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2017:0817
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:0817
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2017:0817
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2017:2077
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2017:2077
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2017:2669
Not affected: 4 products
  • Red Hat Enterprise Linux Client (v. 7)
  • Red Hat Enterprise Linux ComputeNode (v. 7)
  • Red Hat Enterprise Linux Server (v. 7)
  • Red Hat Enterprise Linux Workstation (v. 7)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-7042
  2. 2026-10-03 Alias added: GHSA-qx4h-3xrh-8hmg

References

Advisory 5

Other 2

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences