Home/CVE/arch/x86/kernel/entry_64.S in the Linux kernel before 3.17.5 does not properly handle faults associated with the Stack S
CVE

CVE-2014-9322

arch/x86/kernel/entry_64.S in the Linux kernel before 3.17.5 does not properly handle faults associated with the Stack S

arch/x86/kernel/entry_64.S in the Linux kernel before 3.17.5 does not properly handle faults associated with the Stack Segment (SS) segment register, which allows local users to gain privileges by triggering an IRET instruction that leads to access to a GS Base address from the wrong space.

HIGH · CVSS 7.8 EPSS 0.05409
Act now
  • EPSS percentile: top 10% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-269Improper Privilege Management
▤

Affected Products & Versions

12
linux kernel< 3.2.65
linux kernel>= 3.3 and < 3.4.106
linux kernel>= 3.5 and < 3.10.62
linux kernel>= 3.11 and < 3.12.35
linux kernel>= 3.13 and < 3.14.26
linux kernel>= 3.15 and < 3.16.35
linux kernel>= 3.17 and < 3.17.5
redhat enterprise linux eusall versions
⚠

Public Exploits & PoCs

3
localLinux Kernel - 'BadIRET' Local Privilege Escalation2017-07-24
dosLinux Kernel 3.17.5 - IRET Instruction #SS Fault Handling Crash (PoC)2015-03-04
pocwww.exploit-db.com · 36266www.exploit-db.com
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Dec 2014 · 11:59 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

26
android-securityANDROID-2016-04-02Critical
usnUSN-2491-1
usnUSN-2464-1
usnUSN-2462-1
rhsaRHSA-2015:0009Important
🔗

References & Sources

21
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.htmlMailing ListThird Party Advisory
http://marc.info/?l=bugtraq&m=142722450701342&w=2Mailing ListThird Party Advisory
http://marc.info/?l=bugtraq&m=142722544401658&w=2Mailing ListThird Party Advisory
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