CVE-2018-18751: Double Free
First published: Sun Oct 28 2018(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU gettext | =0.19.8 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| Redhat Enterprise Linux | =7.0 | |
| IBM Data Risk Manager | <=2.0.6 | |
| ubuntu/gettext | <0.19.8.1-6ubuntu0.1 | 0.19.8.1-6ubuntu0.1 |
| ubuntu/gettext | <0.19.8.1-8ubuntu0.1 | 0.19.8.1-8ubuntu0.1 |
| ubuntu/gettext | <0.18.3.1-1ubuntu3.1 | 0.18.3.1-1ubuntu3.1 |
| ubuntu/gettext | <0.19.7-2ubuntu3.1 | 0.19.7-2ubuntu3.1 |
| debian/gettext | 0.21-4 0.21-12 0.22.5-2 |
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Reference Links
- 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
- https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/heapcorruption
- https://usn.ubuntu.com/3815-1/
- https://usn.ubuntu.com/3815-2/
- https://launchpad.net/bugs/cve/CVE-2018-18751
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1647044
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1647045
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1647047
- https://access.redhat.com/security/cve/cve-2018-18751
- https://access.redhat.com/errata/RHSA-2020:1138
- https://access.redhat.com/errata/RHSA-2020:2485
- https://access.redhat.com/errata/RHSA-2020:2846
- https://bugzilla.redhat.com/show_bug.cgi?id=1647043
- https://git.savannah.gnu.org/gitweb/?p=gettext.git;a=commitdiff;h=dce3a16e5e9368245735e29bf498dcd5e3e474a4
- https://security-tracker.debian.org/tracker/CVE-2018-18751
- https://exchange.xforce.ibmcloud.com/vulnerabilities/152105
- https://www.ibm.com/support/pages/node/6335281 (Advisory)
- https://ubuntu.com/security/notices/USN-3815-1
- https://ubuntu.com/security/notices/USN-3815-2
- https://www.cve.org/CVERecord?id=CVE-2018-18751
- https://nvd.nist.gov/vuln/detail/CVE-2018-18751
- https://ubuntu.com/security/CVE-2018-18751
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