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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.2534 USN-4433-1: OpenJDK vulnerabilities 24 July 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: OpenJDK Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Modify Arbitrary Files -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-14621 CVE-2020-14593 CVE-2020-14583 CVE-2020-14581 CVE-2020-14577 CVE-2020-14573 CVE-2020-14562 CVE-2020-14556 Reference: ESB-2020.2437 Original Bulletin: https://usn.ubuntu.com/4433-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4433-1: OpenJDK vulnerabilities 23 July 2020 Several security issues were fixed in OpenJDK. Releases o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS Packages o openjdk-lts - Open Source Java implementation Details Johannes Kuhn discovered that OpenJDK incorrectly handled access control contexts. An attacker could possibly use this issue to execute arbitrary code. (CVE-2020-14556) It was discovered that OpenJDK incorrectly handled memory allocation when reading TIFF image files. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-14562) It was discovered that OpenJDK incorrectly handled input data. An attacker could possibly use this issue to insert, edit or obtain sensitive information. (CVE-2020-14573) Philippe Arteau discovered that OpenJDK incorrectly verified names in TLS server's X.509 certificates. An attacker could possibly use this issue to obtain sensitive information. (CVE-2020-14577) It was discovered that OpenJDK incorrectly handled image files. An attacker could possibly use this issue to obtain sensitive information. (CVE-2020-14581) Markus Loewe discovered that OpenJDK incorrectly handled concurrent access in java.nio.Buffer class. An attacker could use this issue to bypass the sandbox restrictions and cause unspecified impact. (CVE-2020-14583) It was discovered that OpenJDK incorrectly handled transformation of images. An attacker could possibly use this issue to bypass sandbox restrictions and insert, edit or obtain sensitive information. (CVE-2020-14593) Roman Shemyakin discovered that OpenJDK incorrectly handled XML files. An attacker could possibly use this issue to insert, edit or obtain sensitive information. (CVE-2020-14621) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 o openjdk-11-jdk - 11.0.8+10-0ubuntu1~20.04 o openjdk-11-jre - 11.0.8+10-0ubuntu1~20.04 o openjdk-11-jre-headless - 11.0.8+10-0ubuntu1~20.04 o openjdk-11-jre-zero - 11.0.8+10-0ubuntu1~20.04 Ubuntu 18.04 o openjdk-11-jdk - 11.0.8+10-0ubuntu1~18.04.1 o openjdk-11-jre - 11.0.8+10-0ubuntu1~18.04.1 o openjdk-11-jre-headless - 11.0.8+10-0ubuntu1~18.04.1 o openjdk-11-jre-zero - 11.0.8+10-0ubuntu1~18.04.1 This update uses a new upstream release, which includes additional bug fixes. After a standard system update you need to restart any Java applications or applets to make all the necessary changes. References o CVE-2020-14556 o CVE-2020-14562 o CVE-2020-14573 o CVE-2020-14577 o CVE-2020-14581 o CVE-2020-14583 o CVE-2020-14593 o CVE-2020-14621 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXxpGoONLKJtyKPYoAQgGahAAn+rqpIeVnCZeT3ntQZswFPJhk4cbWz+F 2eFmM5WvzMqP2ZyHY56H3zei6VaIsRkIzLlA/PLrwgbbhFoBQuTAliJ8CiofUztS oJQGFiU6fey+zU/z0cTb0yPvLCIsSrPBckP2uWMcwwC9J7ZwY7CfUlnP5G7SGPtZ wWbo7Nv6258ZvnY62aVwClK3AkldLMI5AwKsT1XOOeAUqFp/fwAj73PzM7kByWN9 uUs3f42r8G/02Jr1yfS4ol+fRbXrdGWcnH+oyxp/yM/T1ICCF5pk89/xPgwkB2n6 ZejTYzqV7vT0EJ+pM5iXGHBT28ChGKZxD6Zbr/PZgRJFmvP+RCu0dxqal8Zb0fNo q5TSUmk4Wp+IhD1JoqNTM8cMcmMm7yBf3IZ9EdCuF2D6zEczBI3h4fAHhfPu5MQA MmZ+LJmgFw12763eEMGd+Eua+evYJSRDfXqhsOtBbnlAdLpLwo3WZpYZ7xtOBc1o Bxb6+yGc+CZCR8jnx4qilXDVopI0A6Y1bZJUJO8Yw9T3PRfzVo+gxzekhmkQ+O34 mn3KQjO9Fjqu/a/53MBNcSO9VZMcqOGsTulH9O/fUD7iqhFiLeP+YLXCMVmZijbz vyBSsH4YX8nMePdbdwmyPSHTY/+DSu/eLjz9SfSUPu6uhp5Zyi0NWoMrFENBRzWP PmFSJ7Bd1ws= =52qJ -----END PGP SIGNATURE-----