Skip to content
Fencer Intel
medium 4.9

CVE-2015-7799 json

The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that certain slot numbers are valid, wh…

published 2015-10-19 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-7698

cvss
4.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that certain slot numbers are valid, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.2.6-2

debian advisories DEBIAN-CVE-2015-7799

  • linux Ubuntu 14.04 LTS 3.13.0-73.116
  • linux-lts-wily Ubuntu 14.04 LTS 4.2.0-21.25~14.04.1
  • linux-lts-vivid Ubuntu 14.04 LTS 3.19.0-41.46~14.04.2
  • linux-lts-utopic Ubuntu 14.04 LTS 3.16.0-56.75~14.04.1

ubuntu advisories UBUNTU-CVE-2015-7799

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 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-xen SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-syms SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-trace SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-bigsmp SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-source SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-default SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-ec2 SLE Module for Public Cloud 12 3.12.53-60.30.1

suse advisories SUSE-SU-2016:2074-1SUSE-SU-2016:1203-1SUSE-SU-2016:0585-1SUSE-SU-2015:2350-1SUSE-SU-2015:2339-1SUSE-SU-2015:2292-1

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-2015-7799 updated cvss 4.4

kernel: net: slip: crash when using PPP character device 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: 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

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • code.google.com https://code.google.com/p/android/issues/detail?id=187973 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

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.