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Fencer Vulns
high 7.8

CVE-2017-7308 in the critical feed json

The packet_set_ring function in net/packet/af_packet.c in the Linux kernel through 4.10.6 does not properly validate certain block-size dat…

published 2017-03-29 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16335

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
17.8%
EPSS 17.8% chance of exploitation in 30 days, percentile 97%
public exploits
4
Metasploit, Exploit-DB

Summary

The packet_set_ring function in net/packet/af_packet.c in the Linux kernel through 4.10.6 does not properly validate certain block-size data, which allows local users to cause a denial of service (integer signedness error and out-of-bounds write), or gain privileges (if the CAP_NET_RAW capability is held), via crafted system calls.

Patch / fix

  • linux linux_kernel 3.2.89, 3.10.107, 3.12.74, 3.16.44, 3.18.52, 4.1.41, 4.4.66, 4.9.26, 4.10.14
  • linux Debian 14, Debian 13, Debian 12 4.9.18-1

debian advisories DEBIAN-CVE-2017-7308

  • linux Ubuntu 14.04 LTS 3.13.0-116.163
  • linux Ubuntu 16.04 LTS 4.4.0-72.93
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1013.22
  • linux-gke Ubuntu 16.04 LTS 4.4.0-1010.10
  • linux-hwe Ubuntu 16.04 LTS 4.8.0-46.49~16.04.1
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1052.59
  • linux-lts-xenial Ubuntu 14.04 LTS 4.4.0-72.93~14.04.1
  • linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1055.59

ubuntu advisories UBUNTU-CVE-2017-7308

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 2.6.32-754.el6
  • perf RHEL 6 2.6.32-754.el6
  • python-perf RHEL 6 2.6.32-754.el6
  • kernel-kdump RHEL 6 2.6.32-754.el6
  • kernel-firmware RHEL 6 2.6.32-754.el6
  • kernel-bootwrapper RHEL 6 2.6.32-754.el6
  • kernel-abi-whitelists RHEL 6 2.6.32-754.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-754.el6

red hat advisories RHSA-2018:1854RHSA-2017:1308RHSA-2017:1297RHSA-2017:1298

  • kernel-ec2 SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-pae SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-xen SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-syms SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-trace SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-source SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-default SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-rt SLE Real Time 11 SP4 3.0.101.rt130-69.5.1

suse advisories SUSE-SU-2017:2525-1SUSE-SU-2017:2342-1SUSE-SU-2017:1990-1SUSE-SU-2017:1360-1SUSE-SU-2017:1308-1SUSE-SU-2017:1303-1

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-2017-7308 updated cvss 7.0

kernel: net/packet: overflow in check for priv area size

  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-514.21.1.el7, kernel 3.10.0-514.21.1.el7, python-perf 3.10.0-514.21.1.el7, kernel-tools 3.10.0-514.21.1.el7, kernel-tools-libs 3.10.0-514.21.1.el7, kernel-abi-whitelists 3.10.0-514.21.1.el7, +1 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.21.1.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-514.21.1.el7, kernel 3.10.0-514.21.1.el7, python-perf 3.10.0-514.21.1.el7, kernel-tools 3.10.0-514.21.1.el7, kernel-tools-libs 3.10.0-514.21.1.el7, kernel-abi-whitelists 3.10.0-514.21.1.el7, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.21.1.el7
    fixed: vendor fix RHSA-2017:1308
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6
    fixed: vendor fix RHSA-2018:1854
  • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-514.21.1.rt56.438.el7, kernel-rt-kvm 3.10.0-514.21.1.rt56.438.el7, kernel-rt-trace 3.10.0-514.21.1.rt56.438.el7, kernel-rt-debug-kvm 3.10.0-514.21.1.rt56.438.el7, kernel-rt-trace-kvm 3.10.0-514.21.1.rt56.438.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-514.21.1.rt56.438.el7
    fixed: vendor fix RHSA-2017:1298
  • Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6
    fixed: vendor fix RHSA-2018:1854
  • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt 3.10.0-514.21.1.rt56.438.el7, kernel-rt-trace 3.10.0-514.21.1.rt56.438.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-514.21.1.rt56.438.el7
    fixed: vendor fix RHSA-2017:1298
  • Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-kdump 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-bootwrapper 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, +4 more
    fixed: vendor fix RHSA-2018:1854
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-514.21.1.el7, kernel 3.10.0-514.21.1.el7, python-perf 3.10.0-514.21.1.el7, kernel-kdump 3.10.0-514.21.1.el7, kernel-tools 3.10.0-514.21.1.el7, kernel-tools-libs 3.10.0-514.21.1.el7, +6 more
    fixed: vendor fix RHSA-2017:1308
  • Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-ppc64 2.6.32-754.el6, kernel-debuginfo-common-s390x 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6
    fixed: vendor fix RHSA-2018:1854
show 7 more
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-514.21.1.el7, kernel-debuginfo-common-x86_64 3.10.0-514.21.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-514.21.1.el7
    fixed: vendor fix RHSA-2017:1308
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6
    fixed: vendor fix RHSA-2018:1854
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-514.21.1.el7, kernel 3.10.0-514.21.1.el7, python-perf 3.10.0-514.21.1.el7, kernel-tools 3.10.0-514.21.1.el7, kernel-tools-libs 3.10.0-514.21.1.el7, kernel-abi-whitelists 3.10.0-514.21.1.el7, +1 more
    fixed: vendor fix RHSA-2017:1308
  • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6
    fixed: vendor fix RHSA-2018:1854
  • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.21.1.el7
    fixed: vendor fix RHSA-2017:1308
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-514.rt56.221.el6rt, kernel-rt-trace 3.10.0-514.rt56.221.el6rt, kernel-rt-vanilla 3.10.0-514.rt56.221.el6rt, kernel-rt-firmware 3.10.0-514.rt56.221.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-514.rt56.221.el6rt
    fixed: vendor fix RHSA-2017:1297
  • Red Hat Enterprise Linux 5 kernel
    not 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

Timeline

  1. First public exploit (Metasploit exploit/linux/local/af_packet_packet_set_ring_priv_esc)
  2. Published

Exploit prediction

17.83% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/linux/local/af_packet_packet_set_ring_priv_esc AF_PACKET packet_set_ring Privilege Escalation metasploit exploit, good rank, 2017-03-29
  • EDB-47168 Linux Kernel 4.8.0-34 < 4.8.0-45 (Ubuntu / Linux Mint) - Packet Socket Local Privilege Escalation local, 2018-12-29
  • EDB-44654 Linux 4.8.0 < 4.8.0-46 - AF_PACKET packet_set_ring Privilege Escalation (Metasploit) local, 2018-05-18
  • EDB-41994 Linux Kernel 4.8.0-41-generic (Ubuntu) - Packet Socket Local Privilege Escalation local, 2017-05-11

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-681 Incorrect Conversion between Numeric Types
  • CWE-787 Out-of-bounds Write
Technology feeds

References

Sources

Fencer Vulns 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.