CVE-2017-1000371

HIGH

7.8

CVSS Score

Published: June 19, 2017 at 04:00 PM UTC

Updated: June 17, 2026 at 12:59 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

HIGH7.8

Exploit prediction

EPSS 3%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.1 ≤ v < 4.1.434.10 ≤ v < 4.11.124.12 ≤ v < 4.12.34.2 ≤ v < 4.4.784.5 ≤ v < 4.9.39

Affected range stops below 4.1.43, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.11.12, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.12.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.4.78, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.9.39, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

http://www.debian.org/security/2017/dsa-3981

References (6)

Vendor Advisoryx_refsource_DEBIANThird Party Advisory

Source: [email protected]

http://www.debian.org/security/2017/dsa-3981

VDB Entryx_refsource_BIDThird Party Advisory

Source: [email protected]

http://www.securityfocus.com/bid/99131

x_refsource_CONFIRMThird Party AdvisoryVDB Entry

Source: [email protected]

https://access.redhat.com/security/cve/CVE-2017-1000371

Exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry

Source: [email protected]

https://www.exploit-db.com/exploits/42273/

Exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry

Source: [email protected]

https://www.exploit-db.com/exploits/42276/

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfo

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