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kernel: heap/stack gap jumping via unbounded stack allocations

🗓️ 28 Jun 2017 16:34:27Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 10 Views

Kernel flaw allows heap and stack adjacency to bypass the guard gap; the fix increases it to 1 MiB to deter exploitation.

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IBM Security Bulletins		Security Bulletin: IBM QRadar Network Security is affected by vulnerabilities in Linux kernel
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Amazon		Critical: kernel
19 Jun 201700:00
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Tenable Nessus		Amazon Linux AMI : kernel (ALAS-2017-845) (Stack Clash)
20 Jun 201700:00
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Tenable Nessus		CentOS 7 : kernel (CESA-2017:1484) (Stack Clash)
21 Jun 201700:00
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Tenable Nessus		CentOS 6 : kernel (CESA-2017:1486) (Stack Clash)
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Tenable Nessus		Debian DLA-993-2 : linux regression update (Stack Clash)
20 Jun 201700:00
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux6x86_64kernel-rt1:3.10.0-514.rt56.228.el6rtkernel-rt-1:3.10.0-514.rt56.228.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-debug1:3.10.0-514.rt56.228.el6rtkernel-rt-debug-1:3.10.0-514.rt56.228.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-debug-debuginfo1:3.10.0-514.rt56.228.el6rtkernel-rt-debug-debuginfo-1:3.10.0-514.rt56.228.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-debug-devel1:3.10.0-514.rt56.228.el6rtkernel-rt-debug-devel-1:3.10.0-514.rt56.228.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-debuginfo1:3.10.0-514.rt56.228.el6rtkernel-rt-debuginfo-1:3.10.0-514.rt56.228.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-debuginfo-common-x86_641:3.10.0-514.rt56.228.el6rtkernel-rt-debuginfo-common-x86_64-1:3.10.0-514.rt56.228.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-devel1:3.10.0-514.rt56.228.el6rtkernel-rt-devel-1:3.10.0-514.rt56.228.el6rt.x86_64.rpm
Red Hat Enterprise Linux6anykernel-rt-doc1:3.10.0-514.rt56.228.el6rt.noarchkernel-rt-doc-1:3.10.0-514.rt56.228.el6rt.noarch.noarch.rpm
Red Hat Enterprise Linux6anykernel-rt-firmware1:3.10.0-514.rt56.228.el6rt.noarchkernel-rt-firmware-1:3.10.0-514.rt56.228.el6rt.noarch.noarch.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-trace1:3.10.0-514.rt56.228.el6rtkernel-rt-trace-1:3.10.0-514.rt56.228.el6rt.x86_64.rpm
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28 Jun 2026 12:30Current
7High risk
Vulners AI Score7
CVSS 26.2
CVSS 37.4
EPSS0.05186
kernel memoryheap stack adjacencystack guard gapguard gap increaseone megabyte
10