Security Bulletin
Summary
PowerKVM is affected by vulnerabilities in GStreamer. IBM has now addressed these vulnerabilities.
Vulnerability Details
CVEID: CVE-2016-9634
DESCRIPTION: GStreamer is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder. By using a specially-crafted 'start_line' parameter, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121661 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CVEID: CVE-2016-9635
DESCRIPTION: GStreamer is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder. By providing a 'skip count' that goes beyond initialized buffer, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121668 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CVEID: CVE-2016-9636
DESCRIPTION: GStreamer is vulnerable to a denial of service, caused by heap-based buffer overflow in the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder. By using the start_line parameter, a remote attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121546 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-2016-9807
DESCRIPTION: Gstreamer is vulnerable to a denial of service, caused by an invalid memory read issue in flx_decode_chunks function in gst/flx/gstflxdec.c. By persuading a victim to open a specially-crafted FLIC file, an attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 5.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121060 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
CVEID: CVE-2016-9808
DESCRIPTION: GStreamer is vulnerable to a denial of service, caused by an out-of-bounds write issue in FLIC decoder function. By sending a specially-crafted series of skip and count pairs, an attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121061 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
PowerKVM 3.1
Remediation/Fixes
Customers can update PowerKVM systems by using "yum update".
Fix images are made available via Fix Central. For version 3.1, see https://ibm.biz/BdHggw. This issue is addressed as of 3.1.0.2 update 7 or later.
Version 2.1 is unaffected.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
31 Mar 2017 - Initial Version
30 May 2017 - Removed duplicate references
*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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
17 June 2018
UID
isg3T1025070