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TI-2015-02577 Aliases CVE-2015-2922GHSA-h2xq-wm46-j26f

The ndisc_router_discovery function in net/ipv6/ndisc.c in the Neighbor Discovery (ND)…

Priority LOW 22CWE-17Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Partial
Fix status
Partial Red Hat: 18 fixed, 1 without a fix

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

Summary

The ndisc_router_discovery function in net/ipv6/ndisc.c in the Neighbor Discovery (ND) protocol implementation in the IPv6 stack in the Linux kernel before 3.19.6 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.

Why it matters now

EPSS 0.03006 87th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial Red Hat: 4 advisoriesRed Hat: 18 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 · 9

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 3.19.5VulnerableLinux
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*20VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*21VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*22VulnerableFedoraproject
cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:*5.0VulnerableOracle
cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*11.3VulnerableOracle
cpe:2.3:o:redhat:enterprise_mrg:2.5:*:*:*:*:*:*:*2.5VulnerableRed Hat
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.19.5 Vulnerable ·Linux
  • cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* Versions 20 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* Versions 21 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* Versions 22 Vulnerable ·Fedoraproject
  • cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Oracle
  • cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* Versions 11.3 Vulnerable ·Oracle
  • cpe:2.3:o:redhat:enterprise_mrg:2.5:*:*:*:*:*:*:* Versions 2.5 Vulnerable ·Red Hat
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

Red Hat 4 advisories

  • 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
  • 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
Show 1 more Red Hat advisories
  • 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: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix yet
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 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 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 Optional (v. 6)Fixed RHSA-2015:1221
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2015:1534
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

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-2922
  2. 2026-10-03 Alias added: GHSA-h2xq-wm46-j26f

References

Exploit 2

Advisory 12

Other 3

Sources

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