==================================================================== CERT-Renater Note d'Information No. 2020/VULN666 _____________________________________________________________________ DATE : 08/12/2020 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running IBM® Db2 versions 9.7, 10.1, 10.5, 11.1, 11.5. ===================================================================== https://www.ibm.com/support/pages/node/6242332 https://www.ibm.com/support/pages/node/6242362 _____________________________________________________________________ Security Bulletin: IBM® Db2® is vulnerable to buffer overflow leading to a privileged escalation (CVE-2020-4363) Security Bulletin Summary IBM® Db2® is vulnerable to a buffer overflow, caused by improper bounds checking which could allow a local attacker to execute arbitrary code on the system with root privileges. Vulnerability Details CVEID: CVE-2020-4363 DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) is vulnerable to a buffer overflow, caused by improper bounds checking which could allow a local attacker to execute arbitrary code on the system with root privileges. CVSS Base score: 8.4 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/178960 for the current score. CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) Affected Products and Versions All fix pack levels of IBM Db2 V9.7, V10.1, V10.5, V11.1, and V11.5 editions on all platforms are affected. Remediation/Fixes Customers running any vulnerable fixpack level of an affected Program can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent fixpack level for each impacted release: V9.7 FP11, V10.1 FP6, V10.5 FP11, 11.1 FP5, and V11.5 GA. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability. Release Fixed in fix pack APAR Download URL V9.7 TBD IT32360 Special Build for V9.7 FP11: AIX 64-bit HP-UX 64-bit Linux 32-bit, x86-32 Linux 64-bit, x86-64 Linux 64-bit, POWER™ big endian Linux 64-bit, System z®, System z9® or zSeries® Solaris 64-bit, SPARC Solaris 64-bit, x86-64 Windows 32-bit, x86 Windows 64-bit, x86 V10.1 TBD IT32359 Special Build for V10.1 FP6: AIX 64-bit HP-UX 64-bit Linux 32-bit, x86-32 Linux 64-bit, x86-64 Linux 64-bit, POWER™ big endian Linux 64-bit, System z®, System z9® or zSeries® Solaris 64-bit, SPARC Solaris 64-bit, x86-64 Windows 32-bit, x86 Windows 64-bit, x86 V10.5 TBD IT32358 Special Build for V10.5 FP11: AIX 64-bit HP-UX 64-bit Linux 32-bit, x86-32 Linux 64-bit, x86-64 Linux 64-bit, POWER™ big endian Linux 64-bit, POWER™ little endian Linux 64-bit, System z®, System z9® or zSeries® Solaris 64-bit, SPARC Solaris 64-bit, x86-64 Windows 32-bit, x86 Windows 64-bit, x86 Inspur V11.1 TBD IT32356 Special Build for V11.1 FP5: AIX 64-bit Linux 32-bit, x86-32 Linux 64-bit, x86-64 Linux 64-bit, POWER™ little endian Linux 64-bit, System z®, System z9® or zSeries® Solaris 64-bit, SPARC Windows 32-bit, x86 Windows 64-bit, x86 V11.5 TBD IT32357 Build for V11.5.4 GA: https://www.ibm.com/support/pages/node/6241724 Workarounds and Mitigations None Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. References Complete CVSS v3 Guide On-line Calculator v3 Related Information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Acknowledgement The vulnerability was reported to IBM by Eddie Zhu, BEIJING DBSEC TECHNOLOGY CO., LTD. Change History 7 December 2020: Updated Windows 64-bit image for 9.7 26 November 2020: Windows images for 9.7 updated 9 October 2020: Linux/Unix images for 9.7 refreshed 18 August 2020: Windows images for 9.7 refreshed 30 June 2020: Initial Publication *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin. Disclaimer According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. _____________________________________________________________________ Security Bulletin: IBM® Db2® is vulnerable to a denial of service attack (CVE-2020-4420) Security Bulletin Summary IBM® Db2® could allow an unauthenticated attacker to cause a denial of service due to a hang in the execution of a terminate command. Vulnerability Details CVEID: CVE-2020-4420 DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an unauthenticated attacker to cause a denial of service due a hang in the execution of a terminate command. CVSS Base score: 7.5 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/180076 for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Affected Products and Versions All fix pack levels of IBM Db2 V9.7, V10.1, V10.5, V11.1, and V11.5 editions on all platforms are affected. Remediation/Fixes Customers running any vulnerable fixpack level of an affected Program can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent fixpack level for each impacted release: V9.7 FP11, V10.1 FP6, V10.5 FP11, 11.1 FP5, and V11.5 GA. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability. Release Fixed in fix pack APAR Download URL V9.7 TBD IT32822 Special Build for V9.7 FP11: AIX 64-bit HP-UX 64-bit Linux 32-bit, x86-32 Linux 64-bit, x86-64 Linux 64-bit, POWER™ big endian Linux 64-bit, System z®, System z9® or zSeries® Solaris 64-bit, SPARC Solaris 64-bit, x86-64 Windows 32-bit, x86 Windows 64-bit, x86 V10.1 TBD IT32821 Special Build for V10.1 FP6: AIX 64-bit HP-UX 64-bit Linux 32-bit, x86-32 Linux 64-bit, x86-64 Linux 64-bit, POWER™ big endian Linux 64-bit, System z®, System z9® or zSeries® Solaris 64-bit, SPARC Solaris 64-bit, x86-64 Windows 32-bit, x86 Windows 64-bit, x86 V10.5 TBD IT32362 Special Build for V10.5 FP11: AIX 64-bit HP-UX 64-bit Linux 32-bit, x86-32 Linux 64-bit, x86-64 Linux 64-bit, POWER™ big endian Linux 64-bit, POWER™ little endian Linux 64-bit, System z®, System z9® or zSeries® Solaris 64-bit, SPARC Solaris 64-bit, x86-64 Windows 32-bit, x86 Windows 64-bit, x86 Inspur V11.1 TBD IT32287 Special Build for V11.1 FP5: AIX 64-bit Linux 32-bit, x86-32 Linux 64-bit, x86-64 Linux 64-bit, POWER™ little endian Linux 64-bit, System z®, System z9® or zSeries® Solaris 64-bit, SPARC Windows 32-bit, x86 Windows 64-bit, x86 V11.5 TBD IT32363 Build for V11.5.4 GA: https://www.ibm.com/support/pages/node/6241724 Workarounds and Mitigations None Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. References Complete CVSS v3 Guide On-line Calculator v3 Related Information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Acknowledgement Change History 7 December 2020: Windows 64-bit image for 9.7 updated 26 November 2020: Windows images for 9.7 updated 9 October 2020: Linux/Unix images for 9.7 refreshed 18 August 2020: Windows images for 9.7 refreshed 30 June 2020: Initial Publication *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin. Disclaimer According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. ========================================================= + CERT-RENATER       |    tel : 01-53-94-20-44          + + 23/25 Rue Daviel   |    fax : 01-53-94-20-41         + + 75013 Paris        |    email:cert@support.renater.fr + =========================================================