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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00061.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00065.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00025.html
https://access.redhat.com/errata/RHSA-2019:3643
https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/doublefree	Exploit Third Party Advisory
https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/heapcorruption	Exploit Third Party Advisory
https://usn.ubuntu.com/3815-1/	Third Party Advisory
https://usn.ubuntu.com/3815-2/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:gettext:0.19.8:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:18.10:::::::*

Configuration 3 (hide)

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2018-10-29 12:29

Updated : 2023-12-10 12:44

NVD link : CVE-2018-18751

Mitre link : CVE-2018-18751

CVE.ORG link : CVE-2018-18751

JSON object : View

Products Affected

redhat

enterprise_linux

canonical

ubuntu_linux

gnu

gettext

CWE

CWE-415

Double Free

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