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Fencer Vulns
high 7.8

CVE-2018-17336 json

UDisks 2.8.0 has a format string vulnerability in udisks_log in udiskslogging.c, allowing attackers to obtain sensitive information (stack…

published 2018-09-22 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-9091

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits
0
none known

Summary

UDisks 2.8.0 has a format string vulnerability in udisks_log in udiskslogging.c, allowing attackers to obtain sensitive information (stack contents), cause a denial of service (memory corruption), or possibly have unspecified other impact via a malformed filesystem label, as demonstrated by %d or %n substrings.

Patch / fix

  • udisks2 Debian 14, Debian 13, Debian 12 2.8.1-1

debian advisories DEBIAN-CVE-2018-17336

  • udisks2 Ubuntu 18.04 LTS 2.7.6-3ubuntu0.2

ubuntu advisories UBUNTU-CVE-2018-17336

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

  • udisks2 RHEL 7 2.7.3-9.el7
  • libudisks2 RHEL 7 2.7.3-9.el7
  • udisks2-lsm RHEL 7 2.7.3-9.el7
  • udisks2-lvm2 RHEL 7 2.7.3-9.el7
  • udisks2-iscsi RHEL 7 2.7.3-9.el7

red hat advisories RHSA-2019:2178

  • udisks2 SLE Module for Basesystem 15 2.6.5-3.7.2

suse advisories SUSE-SU-2018:3278-1

  • udisks2 openSUSE Tumbleweed 2.9.2-1.6

opensuse advisories openSUSE-SU-2024:11479-1

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-2018-17336 updated cvss 7.5

udisks: Format string vulnerability in udisks_log in udiskslogging.c

  • Red Hat Enterprise Linux 6 udisks
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) udisks2 2.7.3-9.el7, libudisks2 2.7.3-9.el7, udisks2-lsm 2.7.3-9.el7, udisks2-lvm2 2.7.3-9.el7, udisks2-iscsi 2.7.3-9.el7 Red Hat Enterprise Linux Client Optional (v. 7) libudisks2-devel 2.7.3-9.el7, udisks2-debuginfo 2.7.3-9.el7 Red Hat Enterprise Linux ComputeNode (v. 7) udisks2 2.7.3-9.el7, libudisks2 2.7.3-9.el7, udisks2-lsm 2.7.3-9.el7, udisks2-lvm2 2.7.3-9.el7, udisks2-iscsi 2.7.3-9.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) libudisks2-devel 2.7.3-9.el7, udisks2-debuginfo 2.7.3-9.el7 Red Hat Enterprise Linux Server (v. 7) udisks2 2.7.3-9.el7, libudisks2 2.7.3-9.el7, udisks2-lsm 2.7.3-9.el7, udisks2-lvm2 2.7.3-9.el7, udisks2-iscsi 2.7.3-9.el7 Red Hat Enterprise Linux Server Optional (v. 7) libudisks2-devel 2.7.3-9.el7, udisks2-debuginfo 2.7.3-9.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) udisks2 2.7.3-9.el7, libudisks2 2.7.3-9.el7, udisks2-lsm 2.7.3-9.el7, udisks2-lvm2 2.7.3-9.el7, udisks2-iscsi 2.7.3-9.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) libudisks2-devel 2.7.3-9.el7, udisks2-debuginfo 2.7.3-9.el7
    fixed: vendor fix RHSA-2019:2178
  • Red Hat Ceph Storage 2 storaged Red Hat Enterprise Linux 8 udisks2, libudisks2, udisks2-lsm, udisks2-lvm2, udisks2-iscsi
    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

0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/storaged-project/udisks/issues/578 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-134 Use of Externally-Controlled Format String

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.