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No exploitation reportedFix available

CVE-2018-18751

No exploitation reported by the sources we read.

  • Published2018-10-29
  • WeaknessCWE-415

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in GNU gettext 0.19.8. There is a double free in default_add_message in read-catalog.c, related to an invalid free in po_gram_parse in po-gram-gen.y, as demonstrated by lt-msgfmt.

Timeline

dates in UTC
  1. 2018-10-2912:29CVE publishedNVD

Versions per branch

NVD
Canonical ubuntu linux
BranchAffectedFixed in
12.4= 12.04no fix published
14.4= 14.04no fix published
16.4= 16.04no fix published
18.4= 18.04no fix published
18.10= 18.10no fix published
Gnu gettext
BranchAffectedFixed in
0.19= 0.19.8no fix published
Redhat enterprise linux
BranchAffectedFixed in
7.0= 7.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gettextUbuntu:18.04:LTSall versions · fixed in 0.19.8.1-6ubuntu0.1
  • gettextUbuntu:16.04:LTSall versions · fixed in 0.19.7-2ubuntu3.1
  • gettextUbuntu:14.04:LTSall versions · fixed in 0.18.3.1-1ubuntu3.1
  • gettextRocky Linux:8all versions · fixed in 0:0.19.8.1-17.el8
  • gettextRed Hat:rhel_eus:7.7::serverall versions · fixed in 0:0.19.8.1-3.el7_7and 5 other packages
  • gettextRed Hat:rhel_eus:7.7::computenodeall versions · fixed in 0:0.19.8.1-3.el7_7and 5 other packages
  • gettextRed Hat:rhel_eus:7.6::serverall versions · fixed in 0:0.19.8.1-3.el7_6and 5 other packages
  • gettextRed Hat:rhel_eus:7.6::computenodeall versions · fixed in 0:0.19.8.1-3.el7_6and 5 other packages

32 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-18751 Red Hat Product Security540 products fixed · 4 known affected

    gettext: double free in default_add_message in read-catalog.c

    mingw32-gettext as a component of Red Hat Enterprise Linux 8 · mingw32-gettext-static as a component of Red Hat Enterprise Linux 8 · mingw64-gettext as a component of Red Hat Enterprise Linux 8 · +1 more

  • RHSA-2020:2846 Red Hat Product Security54 products fixed

    Red Hat Security Advisory: gettext security update

  • RHSA-2020:2485 Red Hat Product Security40 products fixed

    Red Hat Security Advisory: gettext security update

  • RHSA-2020:1138 Red Hat Product Security62 products fixed

    Red Hat Security Advisory: gettext security and bug fix update

  • RHSA-2019:3643 Red Hat Product Security36 products fixed

    Red Hat Security Advisory: gettext security update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2020:2846 · 54 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  2. No fix available, says the vendor Red Hat Product Security CVE-2018-18751 · 4 productsFix deferred

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2018-10-29
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-3vvp-8645-4qmr

Frequently asked questions

What is CVE-2018-18751?

An issue was discovered in GNU gettext 0.19.8. There is a double free in default_add_message in read-catalog.c, related to an invalid free in po_gram_parse in po-gram-gen.y, as demonstrated by lt-msgfmt.

Is CVE-2018-18751 actively exploited?

Active exploitation of CVE-2018-18751 has not been confirmed. Its EPSS score was 4.3% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-18751?

CVE-2018-18751 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record