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Fencer Vulns
medium 5.3

CVE-2017-18248 json

The add_job function in scheduler/ipp.c in CUPS before 2.2.6, when D-Bus support is enabled, can be crashed by remote attackers by sending…

published 2018-03-26 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-9379

cvss
5.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

The add_job function in scheduler/ipp.c in CUPS before 2.2.6, when D-Bus support is enabled, can be crashed by remote attackers by sending print jobs with an invalid username, related to a D-Bus notification.

Patch / fix

  • apple cups 2.2.6
  • cups Debian 14, Debian 13, Debian 12 2.2.6-1

debian advisories DEBIAN-CVE-2017-18248

  • cups Ubuntu 14.04 LTS 1.7.2-0ubuntu1.10
  • cups Ubuntu 16.04 LTS 2.1.3-4ubuntu0.5

ubuntu advisories UBUNTU-CVE-2017-18248

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

  • cups SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +1 more 1.7.5-20.14.1

suse advisories SUSE-SU-2018:2162-1

  • cups openSUSE Tumbleweed 2.3.3op2-4.2

opensuse advisories openSUSE-SU-2024:10707-1

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-2017-18248 updated cvss 5.5

cups: Invalid usernames handled in scheduler/ipp.c:add_job() allow remote attackers to cause a denial of service

  • Red Hat Enterprise Linux 7 cups, cups-lpd, cups-libs, cups-client, cups-ipptool, cups-filesystem
    affected: no fix available
  • Red Hat Enterprise Linux 5 cups Red Hat Enterprise Linux 6 cups, cups-lpd, cups-php, cups-libs Red Hat Enterprise Linux 8 cups, cups-lpd, cups-libs, cups-client, cups-ipptool, cups-filesystem
    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

Exploit prediction

2.20% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/apple/cups/issues/5143 referenced PoC, tagged "exploit" by a source, unverified
  • security.cucumberlinux.com https://security.cucumberlinux.com/security/details.php?id=346 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 5.3 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

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.