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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3488 Linux Kernel vulnerabilities affect IBM Spectrum Protect Plus CVE-2019-10140, CVE-2019-11477, CVE-2019-11478, CVE-2019-11479, CVE-2019-13233, CVE-2019-13272, CVE-2019-14283, CVE-2019-14284, CVE-2019-15090, CVE-2019-15807, CVE-2019-15925 13 September 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Spectrum Protect Plus Publisher: IBM Operating System: Linux variants Impact/Access: Root Compromise -- Existing Account Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-15925 CVE-2019-15807 CVE-2019-15090 CVE-2019-14284 CVE-2019-14283 CVE-2019-13272 CVE-2019-13233 CVE-2019-11479 CVE-2019-11478 CVE-2019-11477 CVE-2019-10140 Reference: ASB-2019.0174 ASB-2019.0172 ESB-2019.3476 ESB-2019.3439 ASB-2019.0178.2 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm11072398 - --------------------------BEGIN INCLUDED TEXT-------------------- Linux Kernel vulnerabilities affect IBM Spectrum Protect Plus CVE-2019-10140, CVE-2019-11477, CVE-2019-11478, CVE-2019-11479, CVE-2019-13233, CVE-2019-13272, CVE-2019-14283, CVE-2019-14284, CVE-2019-15090, CVE-2019-15807, CVE-2019-15925 Security Bulletin Summary Multiple vulnerabilities in the Linux Kernel such as denial of service, elevation of privileges, execution of arbitrary code on the system, and the ability to obtain sensitive information affect IBM Spectrum Protect Plus. UPDATED: 11 September 2019 to add CVE-2019-15925 Vulnerability Details CVEID: CVE-2019-10140 DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference in the ovl_posix_acl_create function in fs/overlayfs/ dir.c. By creating directories on overlayfs, a local attacker could exploit this vulnerability to cause the kernel to crash. CVSS Base Score: 6.2 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 165372 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2019-11477 DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by an integer overflow when processing TCP Selective Acknowledgement (SACK) capabilities. By sending specially-crafted SACKs requests, a remote attacker could exploit this vulnerability to cause a kernel panic condition. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 162662 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-2019-11478 DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by an issue with fragmenting the TCP retransmission queue when processing TCP Selective Acknowledgement (SACK) capabilities. By sending specially-crafted SACKs requests, a remote attacker could exploit this vulnerability to cause an excess of system resource usage. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 162664 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-2019-11479 DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a flaw when processing minimum segment size (MSS). By sending specially-crafted MSS traffic, a remote attacker could exploit this vulnerability to cause excess usage of system resources. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 162665 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-2019-13233 DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a use-after-free flaw when a race between modify_ldt() and #BR Exception occurs. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a denial of service condition. CVSS Base Score: 5.1 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 162780 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2019-13272 DESCRIPTION: Linux Kernel could allow a local attacker to gain elevated privileges on the system, caused by improper permission validation and improper object lifetime handling for PTRACE_TRACEME in the ptrace_link function. By sending a specially-crafted request, an attacker could exploit this vulnerability to gain root privileges on the system. CVSS Base Score: 7.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 163733 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) CVEID: CVE-2019-14283 DESCRIPTION: Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by an integer overflow and out-of-bounds read in the drivers/block/floppy.c. By using a specially-crafted floppy disk, an attacker could exploit this vulnerability to execute arbitrary code on the system. CVSS Base Score: 8.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 165352 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVEID: CVE-2019-14284 DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by setup_format_params division-by-zero in drivers/block/floppy.c. By sending specially-crafted ioctls, a local attacker could exploit this vulnerability to cause the application to crash. CVSS Base Score: 4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 165351 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) CVEID: CVE-2019-15090 DESCRIPTION: Linux Kernel could allow a local attacker to obtain sensitive information, caused by an out-of-bounds read in the drivers/scsi/qedi/ qedi_dbg.c. A local attacker could exploit this vulnerability to obtain sensitive information. CVSS Base Score: 4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 165454 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) CVEID: CVE-2019-15807 DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a memory leak in sas_expander.c when SAS expander discovery fails. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 166306 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-2019-15925 DESCRIPTION: Linux Kernel could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds access flaw in the hclge_tm_schd_mode_vnet_base_cfg function in hclge_tm.c. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain sensitive information or cause a denial of service condition on the system. CVSS Base Score: 9.1 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 166576 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H) Affected Products and Versions IBM Spectrum Protect Plus 10.1.0 through 10.1.4.179 (10.1.4 eFix1) Remediation/Fixes +--------------+-----------+----------+------------------------------------------------------------------------------------------+ |Spectrum |First |Platform | | |Protect Plus |Fixing | | | |Release |VRM Level | |Link to Fix | +--------------+-----------+----------+------------------------------------------------------------------------------------------+ |10.1 |10.1.4.222 |Linux |http://www.ibm.com/support/docview.wssuid=ibm10880861 | | |(10.1.4 | | | | |eFix2) | | | +--------------+-----------+----------+------------------------------------------------------------------------------------------+ 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. 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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 iQIVAwUBXXrdPmaOgq3Tt24GAQgkVxAAuhSG1kA3BwlYSYmXJsBH2j3xr6lS9JR8 dcigwY1XRgJQpgnotvH2QWWZxxQom3uSbARHFjMOJqaDWEcaef0WALICsuRTQz9j BzVXo73S0fSJDRnHQHSfQVh6BxGHRnxiSIfVc5ls4WG7S55vAFaoX7sxDpjGzaj3 +IkSD87a402JP3XCSTzbDu1i2A5pUoQA1RiQXWhQurWaPSpUjxdRIHnWwM3v21II jrvX4iNxJYpPvBitBLrWOOOLUjJyPNbIIwFdBZpsMaJpqHoYKrjqT7+x/JmYQDwm yQyv34g23kwdFxLhkpv41YIGDxkwvUCIJU3nA5t+UT5JWYnQO3vG+OmlQDpPQywh /kQ2o0zCjVxraNcATxoZ+GXCV4fzenQe6Apuf0c+6pN2gaLGeUNTM4E/3Wi1Dr1d ToWutdIhtw5Of+fyGgGmu+ATaEl9It8J4Wf9gxaR5JpUEs0sv8U982R8VzPoNr8P O8/Po9NasUjLC3zSd6MQWf7kK7iHKPToKgEWlFSN5A49G8KwHoxrIXdy18WQ5L7+ zoILRCWY+HdwtM2x0HRdKvXw0Y7mrmJgiKMN7OF+wNlZYPGVhuuwvkYF/XVmOkoI gS7UDO0O+wGk6gPB/8D8DxUOOeyE7HwE1bwm0Vqkcea/x0VBDTij/VTdSR8ZHkCt exAEthaS+8Y= =Fnr4 -----END PGP SIGNATURE-----