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Fencer Intel
medium 6.1

CVE-2015-8956 json

The rfcomm_sock_bind function in net/bluetooth/rfcomm/sock.c in the Linux kernel before 4.2 allows local users to obtain sensitive informat…

published 10y ago modified 4mo ago also EUVD-2015-8812

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

The rfcomm_sock_bind function in net/bluetooth/rfcomm/sock.c in the Linux kernel before 4.2 allows local users to obtain sensitive information or cause a denial of service (NULL pointer dereference) via vectors involving a bind system call on a Bluetooth RFCOMM socket.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.2.1-1

debian advisories DEBIAN-CVE-2015-8956

  • kernel RHEL 7 3.10.0-514.el7
  • perf RHEL 7 3.10.0-514.el7
  • python-perf RHEL 7 3.10.0-514.el7
  • kernel-kdump RHEL 7 3.10.0-514.el7
  • kernel-tools RHEL 7 3.10.0-514.el7
  • kernel-tools-libs RHEL 7 3.10.0-514.el7
  • kernel-bootwrapper RHEL 7 3.10.0-514.el7
  • kernel-abi-whitelists RHEL 7 3.10.0-514.el7

red hat advisories RHSA-2016:2574RHSA-2016:2584

  • kernel-rt SLE Real Time 11 SP4 3.0.101.rt130-68.1
  • kernel-syms-rt SLE Real Time 11 SP4 3.0.101.rt130-68.1
  • kernel-rt_trace SLE Real Time 11 SP4 3.0.101.rt130-68.1
  • kernel-source-rt SLE Real Time 11 SP4 3.0.101.rt130-68.1
  • kernel-ec2 SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 3.0.101-0.47.96.1
  • kernel-pae SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.96.1
  • kernel-xen SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 3.0.101-0.47.96.1
  • kernel-syms SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 3.0.101-0.47.96.1

suse advisories SUSE-SU-2017:1102-1SUSE-SU-2017:0494-1SUSE-SU-2017:0471-1SUSE-SU-2017:0333-1SUSE-SU-2016:3304-1SUSE-SU-2016:2976-1

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-8956 updated cvss 6.1

kernel: NULL dereference in RFCOMM bind callback

  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-514.el7, kernel 3.10.0-514.el7, python-perf 3.10.0-514.el7, kernel-tools 3.10.0-514.el7, kernel-tools-libs 3.10.0-514.el7, kernel-abi-whitelists 3.10.0-514.el7, +1 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-514.el7, kernel 3.10.0-514.el7, python-perf 3.10.0-514.el7, kernel-tools 3.10.0-514.el7, kernel-tools-libs 3.10.0-514.el7, kernel-abi-whitelists 3.10.0-514.el7, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.el7
    fixed: vendor fix RHSA-2016:2574
  • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-514.rt56.420.el7, kernel-rt-trace 3.10.0-514.rt56.420.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-514.rt56.420.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-514.rt56.420.el7, kernel-rt-kvm 3.10.0-514.rt56.420.el7, kernel-rt-trace 3.10.0-514.rt56.420.el7, kernel-rt-debug-kvm 3.10.0-514.rt56.420.el7, kernel-rt-trace-kvm 3.10.0-514.rt56.420.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-514.rt56.420.el7
    fixed: vendor fix RHSA-2016:2584
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-514.el7, kernel 3.10.0-514.el7, python-perf 3.10.0-514.el7, kernel-kdump 3.10.0-514.el7, kernel-tools 3.10.0-514.el7, kernel-tools-libs 3.10.0-514.el7, +6 more Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-514.el7, kernel-debuginfo-common-x86_64 3.10.0-514.el7, kernel-debuginfo-common-ppc64le 3.10.0-514.el7 Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-514.el7, kernel 3.10.0-514.el7, python-perf 3.10.0-514.el7, kernel-tools 3.10.0-514.el7, kernel-tools-libs 3.10.0-514.el7, kernel-abi-whitelists 3.10.0-514.el7, +1 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.el7
    fixed: vendor fix RHSA-2016:2574

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

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
NVD 2.0 3.6 AV:L/AC:L/Au:N/C:P/I:N/A:P

Classification

Weakness
Technology feeds

References

Sources

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.