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SUSE 11-SP3: 2017:1613-1 Critical: Memory Corruption Fix

suse
Calendar Grey June 19, 2017
Dist Suse Esm H88
Urgent security patch for SUSE Linux Kernel released to fix memory leaks and vulnerabilities in user space. Update available immediately.
An update that fixes two vulnerabilities is now available

Summary

The SUSE Linux Enterprise 11 SP3 kernel was updated to receive various security fixes. The following security bugs were fixed: - CVE-2017-1000364: The default stack guard page was too small and could be "jumped over" by userland programs using more than one page of stack in functions and so lead to memory corruption. This update extends the stack guard page to 1 MB (for 4k pages) and 16 MB (for 64k pages) to reduce this attack vector. This is not a kernel bugfix, but a hardening measure against this kind of userland attack.(bsc#1039348) - CVE-2015-3288: mm/memory.c in the Linux kernel mishandled anonymous pages, which allowed local users to gain privileges or cause a denial of service (page tainting) via a crafted application that triggers writing to page zero (bnc#979021). Patch Instructions:

References

#1039348 #979021

Cross- CVE-2015-3288 CVE-2017-1000364

Affected Products:

SUSE Linux Enterprise Server 11-SP3-LTSS

SUSE Linux Enterprise Server 11-EXTRA

SUSE Linux Enterprise Point of Sale 11-SP3

SUSE Linux Enterprise Debuginfo 11-SP3

https://www.suse.com/security/cve/CVE-2015-3288.html

https://www.suse.com/security/cve/CVE-2017-1000364.html

https://bugzilla.suse.com/1039348

https://bugzilla.suse.com/979021

Severity
critical
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Critical

Announcement ID: SUSE-SU-2017:1613-1
Rating: critical

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