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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0821.2 IBM Db2 is vulnerable to denial of service (CVE-2020-4135) 6 March 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM DB2 Publisher: IBM Operating System: AIX Windows Linux variants Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-4135 Reference: ESB-2020.0591.2 Original Bulletin: https://www.ibm.com/support/pages/node/2876307 Revision History: March 6 2020: Added the affected software editions and build links corrected March 5 2020: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: IBM(R) Db2(R) is vulnerable to denial of service (CVE-2020-4135) Security Bulletin Document number: 2876307 Modified date: 05 March 2020 Summary Db2 is vulnerable to a denial of service. Db2 could allow an attacker to send specially crafted packets to the Db2 server to cause excessive memory usage and cause Db2 to terminate abnormally. Vulnerability Details CVEID: CVE-2020-4135 DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an unauthenticated user to send specially crafted packets to cause a denial of service from excessive memory usage. CVSS Base score: 7.5 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/ 173806 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, V9.7, V10.1, V10.5, V11.1, V11.5 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 FP10, V11.1 FP5 V11.5 GA. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability. +---------------+----------+----------+----------------------------------------+ |Release |Fixed in |APAR |Download URL | |fix pack | | +---------------+----------+----------+----------------------------------------+ |V9.7 |TBD |IT31523 |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(TM) big endian | | | |Linux 64-bit, System z(R), System z9(R) or zSeries(R) | | | |Solaris 64-bit, SPARC | | | |Solaris 64-bit, x86-64 | | | |Windows 32-bit, x86 | | | |Windows 64-bit, x86 +---------------+----------+----------+----------------------------------------+ |V10.1 |TBD |IT31522 |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(TM) big endian | | | |Linux 64-bit, System z(R), System z9(R) or zSeries(R) | | | |Solaris 64-bit, SPARC | | | |Solaris 64-bit, x86-64 | | | |Windows 32-bit, x86 | | | |Windows 64-bit, x86 +---------------+----------+----------+----------------------------------------+ |V10.5 |TBD |IT31517 |Special Build for V10.5 FP10: | | | | | | | |AIX 64-bit | | | |HP-UX 64-bit | | | |Linux 32-bit, x86-32 | | | |Linux 64-bit, x86-64 | | | |Linux 64-bit, POWER(TM) big endian | | | |Linux 64-bit, POWER(TM) little endian | | | |Linux 64-bit, System z(R), System z9(R) or zSeries(R) | | | |Solaris 64-bit, SPARC | | | |Solaris 64-bit, x86-64 | | | |Windows 32-bit, x86* | | | |Windows 64-bit, x86* | | | |Inspur +---------------+----------+----------+----------------------------------------+ |V11.1 |TBD |IT31521 |Special Build for V11.1 FP5: | | | | | | | |AIX 64-bit | | | |Linux 32-bit, x86-32 | | | |Linux 64-bit, x86-64 | | | |Linux 64-bit, POWER(TM) little endian | | | |Linux 64-bit, System z(R), System z9(R) or zSeries(R) | | | |Windows 32-bit, x86 | | | |Windows 64-bit, x86 +---------------+----------+----------+----------------------------------------+ |V11.5 |TBD |IT31520 |Special Build for V11.5 GA: | | | |AIX 64-bit | | | |Linux 32-bit, x86-32 | | | |Linux 64-bit, x86-64 | | | |Linux 64-bit, POWER(TM) little endian | | | |Linux 64-bit, System z(R), System z9(R) or zSeries(R) | | | |Windows 32-bit, x86 | | | |Windows 64-bit, x86 +---------------+----------+----------+----------------------------------------+ Note: Windows 32-bit and 64-bit links for Db2 V9.7 and V10.1 will be published by March, 2020. * V10.5 Windows special build requires VS 2013 libraries to be installed and would cause db2start to fail otherwise. These libraries can be downloaded from here. Workarounds and Mitigations None Change History 18 Feb 2020: Initial Publication 02 Mar 2020: Added comment that V10.5 Windows special build requires VS 2013 libraries to be installed. 05 Mar 2020: Added the affected software editions 05 Mar 2020: Corrected special build links for all platforms *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. - --------------------------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 iQIVAwUBXmGiVWaOgq3Tt24GAQgGvxAAu0hC1i4L3U0ywPAullSCtLJl7gd+zZNN SjFhox+l0lb6sqMsD0IX4jtI9mN4vpMXPJQNUX7pvspfSHEKF8A7fY4UlCXPWBsu lJ8/okEr1r18dKAmPTeiiSKKpt+75wlBVvA5GwU1UdML2oHrSfj4l9aMTyTgoIOb gkBmmLDdugkS6XmRvh2d7b+b+urfx8RI/GryOTz8aH468KJMID8PUQ91nUREvx8p N6MbxQH30tfQ+Y/KV5KAmEnksBkcTR6FrqV06ZhU29AYNQOHT4bzITSUB7fEsNhd YIOM68e3QWp6sCChKfTTZjCc2jtiwP/6iVHAEfNBwrP+TOnWS7CvrDUrXb88h9Ne oHI2wQvZIawx8z7flSuXPC/Hv1i6vnfFXJvo4ars7ox4gTgKHc6oiUkckzkiEkZD ZQYVwoRl0w3696MOoivSde/pemZTwvw6eQBRWo/t5tsXaqMoVrMQF/vKqa7c6KWv 7JDT7ZbOJrVnQZuCfppKVNkPK0SueQLZKDLTlTml//VHlawFSH2OBF84+4/iWOqG yoGOGiBKWK2hKRAsdMlmPnIYdSd6m0pU04+fC0PW8hdM/K8FNYcRnSLJ4HKbT7+9 TCWI2/AjXpY5Xaotvrnn7N2ccVEfqVc7c5oXf/SyVf4+TwgyaueEEjNK9TAxpUjX 9MoA42gYVQs= =IgJz -----END PGP SIGNATURE-----