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Fencer Vulns
high 7.5

CVE-2019-5188 json

A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4.

published 2020-01-08 6 y ago modified 2026-10-14 25 d ago also EUVD-2019-14793

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.

Patch / fix

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP V3.1.5
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • e2fsprogs Debian 14, Debian 13, Debian 12 1.45.5-1

debian advisories DEBIAN-CVE-2019-5188

  • e2fsprogs Ubuntu 16.04 LTS 1.42.13-1ubuntu1.2
  • e2fsprogs Ubuntu 18.04 LTS 1.44.1-1ubuntu1.3
  • e2fsprogs Ubuntu Pro 14.04 LTS 1.42.9-3ubuntu1.3+esm2

ubuntu advisories UBUNTU-CVE-2019-5188

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

  • e2fsprogs RHEL 7 1.42.9-19.el7
  • libss RHEL 7 1.42.9-19.el7
  • libcom_err RHEL 7 1.42.9-19.el7
  • e2fsprogs-libs RHEL 7 1.42.9-19.el7
  • e2fsprogs RHEL 8 1.45.4-3.el8
  • libss RHEL 8 1.45.4-3.el8
  • libcom_err RHEL 8 1.45.4-3.el8
  • e2fsprogs-libs RHEL 8 1.45.4-3.el8

red hat advisories RHSA-2020:4011RHSA-2020:1913

  • e2fsprogs SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +4 more 1.43.8-3.11.1
  • e2fsprogs SLE Module for Basesystem 15 SP1, SLE Module for Basesystem 15 1.43.8-4.17.1

suse advisories SUSE-SU-2020:0360-1SUSE-SU-2020:0265-1

  • e2fsprogs openSUSE Leap 15.1 1.43.8-lp151.5.12.1

opensuse advisories openSUSE-SU-2020:0166-1

  • e2fsprogs Alpine 3.24, Alpine 3.23, Alpine 3.22 +12 more 1.45.5-r0
  • e2fsprogs Alpine 3.8 1.44.2-r2
  • e2fsprogs Alpine 3.9 1.44.5-r2

alpine advisories ALPINE-CVE-2019-5188

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2019-5188 updated cvss 7.5

e2fsprogs: Out-of-bounds write in e2fsck/rehash.c

  • Red Hat Enterprise Linux 5 e2fsprogs Red Hat Enterprise Linux 6 libss, e2fsprogs, libcom_err, e2fsprogs-libs
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Do 1 openshiftdo/odo-init-image-rhel7 1.1.3-2
    fixed: vendor fix RHSA-2021:0949
  • Red Hat Enterprise Linux BaseOS (v. 8) libss 1.45.4-3.el8, e2fsprogs 1.45.4-3.el8, libcom_err 1.45.4-3.el8, e2fsprogs-libs 1.45.4-3.el8
    fixed: vendor fix RHSA-2020:1913
  • Red Hat Enterprise Linux Client (v. 7) libss 1.42.9-19.el7, e2fsprogs 1.42.9-19.el7, libcom_err 1.42.9-19.el7, e2fsprogs-libs 1.42.9-19.el7 Red Hat Enterprise Linux Client Optional (v. 7) libss-devel 1.42.9-19.el7, e2fsprogs-devel 1.42.9-19.el7, e2fsprogs-static 1.42.9-19.el7, libcom_err-devel 1.42.9-19.el7, e2fsprogs-debuginfo 1.42.9-19.el7 Red Hat Enterprise Linux ComputeNode (v. 7) libss 1.42.9-19.el7, e2fsprogs 1.42.9-19.el7, libcom_err 1.42.9-19.el7, e2fsprogs-libs 1.42.9-19.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) libss-devel 1.42.9-19.el7, e2fsprogs-devel 1.42.9-19.el7, e2fsprogs-static 1.42.9-19.el7, libcom_err-devel 1.42.9-19.el7, e2fsprogs-debuginfo 1.42.9-19.el7 Red Hat Enterprise Linux Server (v. 7) libss 1.42.9-19.el7, e2fsprogs 1.42.9-19.el7, libcom_err 1.42.9-19.el7, e2fsprogs-libs 1.42.9-19.el7 Red Hat Enterprise Linux Server Optional (v. 7) libss-devel 1.42.9-19.el7, e2fsprogs-static 1.42.9-19.el7, e2fsprogs-debuginfo 1.42.9-19.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) libss 1.42.9-19.el7, e2fsprogs 1.42.9-19.el7, libcom_err 1.42.9-19.el7, e2fsprogs-libs 1.42.9-19.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) libss-devel 1.42.9-19.el7, e2fsprogs-static 1.42.9-19.el7, e2fsprogs-debuginfo 1.42.9-19.el7
    fixed: vendor fix RHSA-2020:4011

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

cisa ICSA-23-348-10 updated cvss 7.5

Siemens SIMATIC S7-1500

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.0, < 3.1.5
    affected: fixed in V3.1.5, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
17 mo ago

Exploit prediction

1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2019-0973 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • n/a E2fsprogs
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness

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.