CVE-2017-1000371

The offset2lib patch as used by the Linux Kernel contains a vulnerability, if RLIMIT_STACK is set to RLIM_INFINITY and 1 Gigabyte of memory is allocated (the maximum under the 1/4 restriction) then the stack will be grown down to 0x80000000, and as the PIE binary is mapped above 0x80000000 the minimum distance between the end of the PIE binary's read-write segment and the start of the stack becomes small enough that the stack guard page can be jumped over by an attacker. This affects Linux Kernel version 4.11.5. This is a different issue than CVE-2017-1000370 and CVE-2017-1000365. This issue appears to be limited to i386 based systems.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt	Third Party Advisory
https://access.redhat.com/security/cve/CVE-2017-1000371	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/99131	Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/42276/	Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/42273/	Third Party Advisory VDB Entry
http://www.debian.org/security/2017/dsa-3981	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Information

Published : 2017-06-19 09:29

Updated : 2023-01-17 13:03

NVD link : CVE-2017-1000371

Mitre link : CVE-2017-1000371

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

linux

linux_kernel

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