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Fencer Vulns
critical 9.8

CVE-2017-12762 in the critical feed json

In /drivers/isdn/i4l/isdn_net.c: A user-controlled buffer is copied into a local buffer of constant size using strcpy without a length chec…

published 2017-08-09 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-4301

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.2%
EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

In /drivers/isdn/i4l/isdn_net.c: A user-controlled buffer is copied into a local buffer of constant size using strcpy without a length check which can cause a buffer overflow. This affects the Linux kernel 4.9-stable tree, 4.12-stable tree, 3.18-stable tree, and 4.4-stable tree.

Patch / fix

  • linux linux_kernel 3.18.64
  • linux Debian 14, Debian 13, Debian 12 4.13.4-1

debian advisories DEBIAN-CVE-2017-12762

  • linux Ubuntu 14.04 LTS 3.13.0-144.193
  • linux Ubuntu 16.04 LTS 4.4.0-96.119
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1035.44
  • linux-gcp Ubuntu 16.04 LTS 4.13.0-1002.5
  • linux-gke Ubuntu 16.04 LTS 4.4.0-1031.31
  • linux-hwe Ubuntu 16.04 LTS 4.13.0-32.35~16.04.1
  • linux-azure Ubuntu 16.04 LTS 4.13.0-1005.7
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1074.82

ubuntu advisories UBUNTU-CVE-2017-12762

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-ec2 SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.18.1
  • kernel-pae SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.18.1
  • kernel-xen SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.18.1
  • kernel-syms SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.18.1
  • kernel-ppc64 SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.18.1
  • kernel-trace SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.18.1
  • kernel-bigmem SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.18.1
  • kernel-source SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.18.1

suse advisories SUSE-SU-2017:3265-1SUSE-SU-2017:2920-1SUSE-SU-2017:2908-1SUSE-SU-2017:2811-1SUSE-SU-2017:2813-1SUSE-SU-2017:2816-1

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-2017-12762 updated cvss 4.7

kernel: Buffer overflow due to unbounded strcpy in ISDN I4L driver

  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: workaround, no fix planned “Will not fix”

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

5.23% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
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.