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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3666 Multiple vulnerabilities in Node.js affect IBM i 30 September 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM i Publisher: IBM Operating System: IBM i Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-9518 CVE-2019-9517 CVE-2019-9516 CVE-2019-9515 CVE-2019-9514 CVE-2019-9513 CVE-2019-9512 CVE-2019-9511 Reference: ESB-2019.3639 ESB-2019.3606 Original Bulletin: https://www.ibm.com/support/pages/node/1072144 - --------------------------BEGIN INCLUDED TEXT-------------------- Multiple vulnerabilities in Node.js affect IBM i Security Bulletin Summary Node.js is supported by IBM i. IBM i has addressed the vulnerabilities. Document Information Software version: 7.2,7.3,7.4 Operating system(s): IBM i Reference #: 1072144 Modified date: 26 September 2019 Vulnerability Details CVEID: CVE-2019-9517 DESCRIPTION: Multiple vendors are vulnerable to a denial of service, caused by an Internal Data Buffering attack. By opening the HTTP/2 window so the peer can send without constraint and sending a stream of requests for a large response object, a remote attacker could consume excessive CPU resources. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 165183 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2019-9518 DESCRIPTION: Multiple vendors are vulnerable to a denial of service, caused by a Empty Frame Flooding attack. By sending a stream of frames with an empty payload and without the end-of-stream flag, a remote attacker could consume excessive CPU resources. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 164904 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2019-9515 DESCRIPTION: Multiple vendors are vulnerable to a denial of service, caused by a Settings Flood attack. By sending a stream of SETTINGS frames to the peer, a remote attacker could consume excessive CPU resources. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 165181 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2019-9516 DESCRIPTION: Multiple vendors are vulnerable to a denial of service, caused by a 0-Length Headers Leak attack. By sending a stream of headers with a 0-length header name and 0-length header value, a remote attacker could consume excessive memory resources. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 165182 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2019-9513 DESCRIPTION: Multiple vendors are vulnerable to a denial of service, caused by a Resource Loop attack. By creating multiple request streams and continually shuffling the priority of the streams, a remote attacker could consume excessive CPU resources. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 164639 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2019-9514 DESCRIPTION: Multiple vendors are vulnerable to a denial of service, caused by a Reset Flood attack. By opening a number of streams and sending an invalid request over each stream, a remote attacker could consume excessive CPU resources. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 164640 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2019-9511 DESCRIPTION: Multiple vendors are vulnerable to a denial of service, caused by a Data Dribble attack. By sending a HTTP/2 request by the HTTP/2 protocol stack (HTTP.sys) for an overly large amount of data from a specified resource over multiple streams, a remote attacker could consume excessive CPU resources. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 164638 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2019-9512 DESCRIPTION: Multiple vendors are vulnerable to a denial of service, caused by a Ping Flood attack. By sending continual pings to an HTTP/2 peer, a remote attacker could consume excessive CPU resources. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 164903 for the current score CVSS Environmental Score*: Undefined 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 Releases 7.4, 7.3 and 7.2 of IBM i are affected. Remediation/Fixes Releases 7.4, 7.3 and 7.2 of IBM i are supported and will be fixed. The issue can be fixed by installing an rpm update based on Node.js version. IBM recommends users stay up to date with all packages. Command line instructions: To update all installed packages yum upgrade To only update Node.js 12 to the latest version yum upgrade nodejs12 To only update Node.js 10 to the latest version yum upgrade nodejs10 To only update Node.js 8 to the latest version yum upgrade nodejs8 ACS GUI instructions: Open the ACS Package Management GUI using Tools -> Open Source Package Management. - From the Updates Available tab, select the packages to update (multiples can be selected using Ctrl + click). When all packages have been selected, click the Upgrade button and follow the directions on the terminal. Updated packages: nodejs12-12.8.1-1.ibmi7.2.ppc64.rpm nodejs10-10.16.3-1.ibmi7.2.ppc64.rpm nodejs8-8.16.1-1.ibmi7.2.ppc64.rpm Note: More recent versions of these packages may be available. For more information about the packages in rpm format, see http://ibm.biz/ ibmi-rpms Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products. Workarounds and Mitigations None Get Notified about Future Security Bulletins References - --------------------------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. 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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 iQIVAwUBXZGLP2aOgq3Tt24GAQi6HQ//RyCgtABlooZt5FnPs/uqPS/yOM6snZs5 lW7dzQp/pXIQwJQ8stATacQIdjAwnalqKHnPi5nDL9HMygD8KekUUhxkX1tMx+83 7ZQHPd9O81NRvfcVaN0C7RL1uVvGvyQ931DzodeCaN4wzWTXQoyCDUMaZV5CXqyD ov30KVTU/symIaMc/JKf9A76FiLnmeoMo/ErOoRU5RhxZeeNqJeqstzv/YhksYdj UzILMXJ0BzkG9VC6QQR9sTUE9oy7D0/shWRwcblqVoBqQult/iPuFiou8CSMA8k1 /leHaBAbPDJ8uWrrYp/MVSA1f50jeeeaWvoP740DdHykeCo3b0vPBLsPwwgqkKgr m+zF3Yw04+vxPwE14Ek8kp1TpgkrVe721YdKFkRrLmyTxMZv8h1ldPf8fr204jLV 3bUiXcwrBweGzVfDab48wZ90MubvSYAUxvX7GsQw0fWj0neMJblJ4oQr19IR9BZ9 21Ouhw5xZZZvzeqwGiIwan0quNiYSvpczA50rF2wCbJvQlZ8KMKBn/nXJrHL5faZ fLAcdriRhi6AvJWtkU3D/fty17rLwUaQZqQUbP+qUXxoVg3fgs3v930uVlfBSdPU uAtIIhlKA58CAKdFwN9oSBtaKkVaaRR+mtAZ2GGSd5tSXs43xHpxc0Dho5BKoxeW k87GYC9nNHE= =Pj5f -----END PGP SIGNATURE-----