Vulnerability DatabaseCVE-2018-18751
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CVE-2018-18751
Published:October 28, 2018
Updated:May 17, 2026
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.
Related Resources (11)
https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/doublefree
https://access.redhat.com/security/cve/CVE-2018-18751
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-18751
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00061.html
https://usn.ubuntu.com/3815-2/
https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/heapcorruption
https://access.redhat.com/errata/RHSA-2019:3643
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00065.html
https://security-tracker.debian.org/tracker/CVE-2018-18751
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00025.html
https://usn.ubuntu.com/3815-1/
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CVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Double Free
CWE-415
EPSS
Base Score:
0.56