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CVE-2017-9211

Date: May 23, 2017

The crypto_skcipher_init_tfm function in crypto/skcipher.c in the Linux kernel through 4.11.2 relies on a setkey function that lacks a key-size check, which allows local users to cause a denial of service (NULL pointer dereference) via a crafted application.

Language: C

Severity Score

Related Resources (6)

https://github.com/torvalds/linux/commit/9933e113c2e87a9f46a40fde8dafbf801dca1ab9
https://nvd.nist.gov/vuln/detail/CVE-2017-9211
https://access.redhat.com/security/cve/CVE-2017-9211
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9933e113c2e87a9f46a40fde8dafbf801dca1ab9
https://patchwork.kernel.org/patch/9718933/
https://www.mend.io/vulnerability-database/CVE-2017-9211

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

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): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

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

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