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TI-2015-03076 Aliases CVE-2015-3636GHSA-67pv-68g5-4j93

The ping_unhash function in net/ipv4/ping.c in the Linux kernel before 4.0.3 does not…

Priority LOW 27Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Complete
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

The ping_unhash function in net/ipv4/ping.c in the Linux kernel before 4.0.3 does not initialize a certain list data structure during an unhash operation, which allows local users to gain privileges or cause a denial of service (use-after-free and system crash) by leveraging the ability to make a SOCK_DGRAM socket system call for the IPPROTO_ICMP or IPPROTO_ICMPV6 protocol, and then making a connect system call after a disconnect.

Why it matters now

EPSS 0.02472 84th percentileScored 2026-11-07
Fix Fixed Red Hat: 6 advisories

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 · 4

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 4.0.2VulnerableLinux
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*12.04VulnerableCanonical
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 4.0.2 Vulnerable ·Linux
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* Versions 12.04 Vulnerable ·Canonical

Remediation

Red Hat 6 advisories

  • RHSA-2015:1643 Released 2015-08-18 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server AUS (v. 6.4) kernel-2.6.32-358.65.1.el6, kernel-debug-2.6.32-358.65.1.el6, kernel-debug-devel-2.6.32-358.65.1.el6 +5
    • Red Hat Enterprise Linux Server Optional AUS (v. 6.4) kernel-2.6.32-358.65.1.el6, python-perf-2.6.32-358.65.1.el6
  • RHSA-2015:1583 Released 2015-08-11 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5) kernel-2.6.32-431.61.2.el6, python-perf-2.6.32-431.61.2.el6
    • Red Hat Enterprise Linux HPC Node EUS (v. 6.5) kernel-2.6.32-431.61.2.el6, kernel-abi-whitelists-2.6.32-431.61.2.el6, kernel-debug-2.6.32-431.61.2.el6 +6
    • Red Hat Enterprise Linux Server EUS (v. 6.5) kernel-2.6.32-431.61.2.el6, kernel-abi-whitelists-2.6.32-431.61.2.el6, kernel-bootwrapper-2.6.32-431.61.2.el6 +9
    • Red Hat Enterprise Linux Server Optional EUS (v. 6.5) kernel-2.6.32-431.61.2.el6, python-perf-2.6.32-431.61.2.el6
  • RHSA-2015:1534 Released 2015-08-06 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-229.11.1.el7, kernel-abi-whitelists-3.10.0-229.11.1.el7, kernel-debug-3.10.0-229.11.1.el7 +7
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-229.11.1.el7, python-perf-3.10.0-229.11.1.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-229.11.1.el7, kernel-abi-whitelists-3.10.0-229.11.1.el7, kernel-debug-3.10.0-229.11.1.el7 +7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-229.11.1.el7, python-perf-3.10.0-229.11.1.el7
    • Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-229.11.1.ael7b, kernel-3.10.0-229.11.1.el7, kernel-abi-whitelists-3.10.0-229.11.1.ael7b +20
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-229.11.1.ael7b, kernel-tools-libs-devel-3.10.0-229.11.1.ael7b, kernel-tools-libs-devel-3.10.0-229.11.1.el7 +2
    • Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-229.11.1.el7, kernel-abi-whitelists-3.10.0-229.11.1.el7, kernel-debug-3.10.0-229.11.1.el7 +7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-229.11.1.el7, python-perf-3.10.0-229.11.1.el7
Show 3 more Red Hat advisories
  • RHSA-2015:1565 Released 2015-08-05 · Red Hat rating Moderate
    kernel-rt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt-3.10.0-229.11.1.rt56.141.11.el7_1, kernel-rt-debug-3.10.0-229.11.1.rt56.141.11.el7_1, kernel-rt-debug-devel-3.10.0-229.11.1.rt56.141.11.el7_1 +4
  • RHSA-2015:1564 Released 2015-08-05 · Red Hat rating Moderate
    kernel-rt security, bug fix, and enhancement update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-1:3.10.0-229.rt56.158.el6rt, kernel-rt-debug-1:3.10.0-229.rt56.158.el6rt, kernel-rt-debug-devel-1:3.10.0-229.rt56.158.el6rt +7
  • RHSA-2015:1221 Released 2015-07-14 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-504.30.3.el6, kernel-abi-whitelists-2.6.32-504.30.3.el6, kernel-debug-2.6.32-504.30.3.el6 +6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf-2.6.32-504.30.3.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-504.30.3.el6, kernel-abi-whitelists-2.6.32-504.30.3.el6, kernel-debug-2.6.32-504.30.3.el6 +6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf-2.6.32-504.30.3.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-504.30.3.el6, kernel-abi-whitelists-2.6.32-504.30.3.el6, kernel-bootwrapper-2.6.32-504.30.3.el6 +9
    • Red Hat Enterprise Linux Server Optional (v. 6) python-perf-2.6.32-504.30.3.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-504.30.3.el6, kernel-abi-whitelists-2.6.32-504.30.3.el6, kernel-debug-2.6.32-504.30.3.el6 +6
    • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf-2.6.32-504.30.3.el6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2015:1534
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2015:1534
Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5)Fixed RHSA-2015:1583
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2015:1534
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2015:1534
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2015:1221
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2015:1221
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2015:1221
Red Hat Enterprise Linux HPC Node EUS (v. 6.5)Fixed RHSA-2015:1583
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2015:1221
Red Hat Enterprise Linux Realtime (v. 7)Fixed RHSA-2015:1565
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2015:1221
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2015:1534
Red Hat Enterprise Linux Server AUS (v. 6.4)Fixed RHSA-2015:1643
Red Hat Enterprise Linux Server EUS (v. 6.5)Fixed RHSA-2015:1583
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2015:1221
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2015:1534
Red Hat Enterprise Linux Server Optional AUS (v. 6.4)Fixed RHSA-2015:1643
Red Hat Enterprise Linux Server Optional EUS (v. 6.5)Fixed RHSA-2015:1583
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2015:1221
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2015:1534
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2015:1221
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2015:1534
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2015:1564
Not affected: 1 product
  • Red Hat Enterprise Linux 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-3636
  2. 2026-10-03 Alias added: GHSA-67pv-68g5-4j93

References

Advisory 20

Other 6

Sources

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