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CVE-2017-1000370

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Date: June 19, 2017

The offset2lib patch as used in the Linux Kernel contains a vulnerability that allows a PIE binary to be execve()'ed with 1GB of arguments or environmental strings then the stack occupies the address 0x80000000 and the PIE binary is mapped above 0x40000000 nullifying the protection of the offset2lib patch. This affects Linux Kernel version 4.11.5 and earlier. This is a different issue than CVE-2017-1000371. This issue appears to be limited to i386 based systems.

Language: C

Severity Score

Related Resources (9)

https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
http://www.debian.org/security/2017/dsa-3981
https://access.redhat.com/security/cve/CVE-2017-1000370
https://www.exploit-db.com/exploits/42274/
https://nvd.nist.gov/vuln/detail/CVE-2017-1000370
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-1000370
https://www.exploit-db.com/exploits/42273/
http://www.securityfocus.com/bid/99149
https://www.mend.io/vulnerability-database/CVE-2017-1000370

Severity Score

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

Insufficient Information

NVD-CWE-noinfo

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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