CVE-2019-19956
First published: Tue Dec 24 2019(Updated: )
libxml2 is vulnerable to a denial of service, caused by a memory leak in xmlParseBalancedChunkMemoryRecover in parser.c. By persuading a victim to open a specially crafted file, a remote attacker could exploit this vulnerability to cause the application to crash.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/jbcs-httpd24-curl | <0:7.64.1-36.jbcs.el6 | 0:7.64.1-36.jbcs.el6 |
| redhat/jbcs-httpd24-httpd | <0:2.4.37-57.jbcs.el6 | 0:2.4.37-57.jbcs.el6 |
| redhat/jbcs-httpd24-nghttp2 | <0:1.39.2-25.jbcs.el6 | 0:1.39.2-25.jbcs.el6 |
| redhat/jbcs-httpd24-curl | <0:7.64.1-36.jbcs.el7 | 0:7.64.1-36.jbcs.el7 |
| redhat/jbcs-httpd24-httpd | <0:2.4.37-57.jbcs.el7 | 0:2.4.37-57.jbcs.el7 |
| redhat/jbcs-httpd24-nghttp2 | <0:1.39.2-25.jbcs.el7 | 0:1.39.2-25.jbcs.el7 |
| redhat/jbcs-httpd24-openssl-pkcs11 | <0:0.4.10-7.jbcs.el7 | 0:0.4.10-7.jbcs.el7 |
| redhat/libxml2 | <0:2.9.1-6.el7.5 | 0:2.9.1-6.el7.5 |
| redhat/libxml2 | <0:2.9.7-8.el8 | 0:2.9.7-8.el8 |
| IBM Security Guardium | <=10.5 | |
| IBM Security Guardium | <=10.6 | |
| IBM Security Guardium | <=11.0 | |
| IBM Security Guardium | <=11.1 | |
| IBM Security Guardium | <=11.2 | |
| IBM Security Guardium | <=11.3 | |
| redhat/libxml2 | <2.9.10 | 2.9.10 |
| ubuntu/libxml2 | <2.9.4+dfsg1-6.1ubuntu1.3 | 2.9.4+dfsg1-6.1ubuntu1.3 |
| ubuntu/libxml2 | <2.9.4+dfsg1-7ubuntu3.1 | 2.9.4+dfsg1-7ubuntu3.1 |
| ubuntu/libxml2 | <2.9.10+dfsg-1ubuntu2 | 2.9.10+dfsg-1ubuntu2 |
| ubuntu/libxml2 | <2.9.1+dfsg1-3ubuntu4.13+ | 2.9.1+dfsg1-3ubuntu4.13+ |
| ubuntu/libxml2 | <2.9.10 | 2.9.10 |
| ubuntu/libxml2 | <2.9.3+dfsg1-1ubuntu0.7 | 2.9.3+dfsg1-1ubuntu0.7 |
| debian/libxml2 | 2.9.4+dfsg1-7+deb10u4 2.9.4+dfsg1-7+deb10u6 2.9.10+dfsg-6.7+deb11u4 2.9.14+dfsg-1.3~deb12u1 2.9.14+dfsg-1.3 | |
| Xmlsoft Libxml2 | <2.9.10 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Oracle Real User Experience Insight | =13.3.1.0 | |
| Fedoraproject Fedora | =30 | |
| Fedoraproject Fedora | =32 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =19.10 | |
| Netapp Active Iq Unified Manager Vmware Vsphere | ||
| NetApp Clustered Data ONTAP | ||
| Netapp Clustered Data Ontap Antivirus Connector | ||
| Netapp Manageability Software Development Kit | ||
| NetApp ONTAP Select Deploy administration utility | ||
| Netapp Steelstore Cloud Integrated Storage | ||
| Siemens SINEMA Remote Connect Server | <3.0 |
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Reference Links
- https://exchange.xforce.ibmcloud.com/vulnerabilities/173518
- https://www.ibm.com/support/pages/node/6455281 (Advisory)
- https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549
- https://lists.debian.org/debian-lts-announce/2019/12/msg00032.html
- https://security.netapp.com/advisory/ntap-20200114-0002/
- https://usn.ubuntu.com/4274-1/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00005.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08
- https://launchpad.net/bugs/cve/CVE-2019-19956
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1788857
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1788859
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1788858
- https://bodhi.fedoraproject.org/updates/FEDORA-2019-44d48a72e5
- https://bodhi.fedoraproject.org/updates/FEDORA-2019-92097b71ff
- https://gitlab.gnome.org/GNOME/libxml2/commits/41a34e1f4ffae2ce401600dbb5fe43f8fe402641
- https://gitlab.gnome.org/GNOME/libxml2/issues/82
- https://access.redhat.com/errata/RHSA-2020:2644
- https://access.redhat.com/errata/RHSA-2020:2646
- https://access.redhat.com/security/cve/cve-2019-19956
- https://access.redhat.com/errata/RHSA-2020:3996
- https://access.redhat.com/errata/RHSA-2020:4479
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1788856#c10
- https://bugzilla.redhat.com/show_bug.cgi?id=1788856
- https://www.cve.org/CVERecord?id=CVE-2019-19956 https://nvd.nist.gov/vuln/detail/CVE-2019-19956
- https://security-tracker.debian.org/tracker/CVE-2019-19956
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19956
- https://ubuntu.com/security/notices/USN-4274-1
- https://nvd.nist.gov/vuln/detail/CVE-2019-19956
- https://ubuntu.com/security/CVE-2019-19956
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2019-19956.
What is the severity of CVE-2019-19956?
The severity of CVE-2019-19956 is high, with a severity value of 7.5.
How does CVE-2019-19956 affect libxml2?
CVE-2019-19956 affects libxml2 by causing a denial of service due to a memory leak in xmlParseBalancedChunkMemoryRecover in parser.c, which can result in application crashes.
How can CVE-2019-19956 be exploited?
CVE-2019-19956 can be exploited by convincing a victim to open a specially crafted file, allowing a remote attacker to trigger the vulnerability and cause application crashes.
How can I fix CVE-2019-19956?
To fix CVE-2019-19956, update libxml2 to version 2.9.10 or apply the appropriate patch provided by the vendor.
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