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Fencer Vulns
medium 5.9

CVE-2019-13636 json

In GNU patch through 2.7.6, the following of symlinks is mishandled in certain cases other than input files.

published 2019-07-17 7 y ago modified 2026-07-18 3 mo ago also EUVD-2019-5064 , JLSEC-2026-16

cvss
5.9
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

In GNU patch through 2.7.6, the following of symlinks is mishandled in certain cases other than input files. This affects inp.c and util.c.

Patch / fix

  • julia patch_jll 2.8.0+0
  • patch Debian 14, Debian 13, Debian 12 2.7.6-5

debian advisories DEBIAN-CVE-2019-13636

  • patch Ubuntu 16.04 LTS 2.7.5-1ubuntu0.16.04.2
  • patch Ubuntu 18.04 LTS 2.7.6-2ubuntu1.1
  • patch Ubuntu Pro 14.04 LTS 2.7.1-4ubuntu2.4+esm1

ubuntu advisories UBUNTU-CVE-2019-13636

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

  • patch RHEL 8 2.7.6-11.el8

red hat advisories RHSA-2020:1852

  • patch SLES for SAP 12 SP5, SLES 12 SP5 2.7.5-8.8.1
  • patch SLE Module for Basesystem 15 SP4, SLE Module for Basesystem 15 SP3, openSUSE Leap 15.4 +1 more 2.7.6-150000.5.3.1

suse advisories SUSE-SU-2022:1932-1SUSE-SU-2022:1925-1

  • patch openSUSE Tumbleweed 2.7.6-5.1

opensuse advisories openSUSE-SU-2024:12060-1

  • patch AlmaLinux 8 2.7.6-11.el8

almalinux advisories ALSA-2020:1852

  • patch Rocky Linux 8 2.7.6-11.el8

rocky linux advisories RLSA-2020:1852

  • patch Alpine 3.24, Alpine 3.23, Alpine 3.22 +13 more 2.7.6-r5
  • patch Alpine 3.7 2.7.5-r3
  • patch Alpine 3.8 2.7.6-r3

alpine advisories ALPINE-CVE-2019-13636

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

  • patch Azure Linux 3.0 2.7.6-9
  • patch CBL-Mariner 2.0 2.7.6-7

azure linux advisories AZL-35105AZL-6789

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2019-13636 updated cvss 5.9

patch: the following of symlinks in inp.c and util.c is mishandled in cases other than input files

  • Red Hat Enterprise Linux 5 patch Red Hat Enterprise Linux 6 patch
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 patch
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux BaseOS (v. 8) patch 2.7.6-11.el8
    fixed: vendor fix RHSA-2020:1852

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

3.90% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:N/I:P/A:P
OSV 3.0 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
julia patch_jll
<2.8.0+0
2.8.0+0

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

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.