BSA-2017-355
21397
27 October 2017
25 August 2017
Closed
Medium
6.2
N/A
CVE-2017-1000366
Summary
Security Advisory ID : BSA-2017-355
Component : Stack
Revision : 2.0: Interim
A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is glibc-side mitigation which blocks processing of LD_LIBRARY_PATH for programs running in secure-execution mode and reduces the number of allocations performed by the processing of LD_AUDIT, LD_PRELOAD, and LD_HWCAP_MASK, making successful exploitation of this issue more difficult.
Affected ProductsProduct | Current Assessment |
---|---|
Brocade SLX-OS | Impacted: Fixed in 17r.2.0. |
Brocade Fabric OS, Brocade FastIron OS, Brocade NetIron OS, Brocade Network OS, Brocade ServerIron ADX, and Brocade Workflow Composer are confirmed not affected by this vulnerability.
WorkaroundThere are no workarounds that address this vulnerability.
Revision History
Version | Change | Date |
---|---|---|
1.0 | Initial Publication | August 25, 2017 |
2.0 | Updated to address ADX & WC | October 27, 2017 |