CVE-2015-8746 : fs/nfs/nfs4proc.c in the NFS client in the Linux kernel before 4.2.2 does not pr

fs/nfs/nfs4proc.c in the NFS client in the Linux kernel before 4.2.2 does not properly initialize memory for migration recovery operations, which allows remote NFS servers to cause a denial of service (NULL pointer dereference and panic) via crafted network traffic.

Published 2016-05-02 10:59:20

Updated 2025-04-12 10:46:41

Source Debian GNU/Linux

View at NVD, CVE.org

Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2015-8746

Linux » Linux Kernel
Versions up to, including, (<=) 4.2.1
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2015-8746

EPSS FAQ

1.88%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 82 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2015-8746

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

References for CVE-2015-8746

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=18e3b739fdc826481c6a1335ce0c5b19b3d415da

kernel/git/torvalds/linux.git - Linux kernel source tree
http://rhn.redhat.com/errata/RHSA-2016-2574.html

RHSA-2016:2574 - Security Advisory - Red Hat Customer Portal

CVEs referencing this url
http://www.securitytracker.com/id/1034594

Linux Kernel NFS Null Pointer Dereference Lets Local Users Cause Denial of Service Conditions on the Target System - SecurityTracker
http://www.openwall.com/lists/oss-security/2016/01/05/9

oss-security - CVE request -- linux kernel: nfs: kernel panic occurs at nfs client when nfsv4.2 migration is executed
https://github.com/torvalds/linux/commit/18e3b739fdc826481c6a1335ce0c5b19b3d415da

NFS: Fix a NULL pointer dereference of migration recovery ops for v4.… · torvalds/linux@18e3b73 · GitHub
Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.2
https://bugzilla.redhat.com/show_bug.cgi?id=1295802

1295802 – (CVE-2015-8746) CVE-2015-8746 kernel: when NFSv4 migration is executed, kernel oops occurs at NFS client
http://rhn.redhat.com/errata/RHSA-2016-2584.html

RHSA-2016:2584 - Security Advisory - Red Hat Customer Portal

CVEs referencing this url

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Vulnerability Details : CVE-2015-8746

Products affected by CVE-2015-8746

Exploit prediction scoring system (EPSS) score for CVE-2015-8746

CVSS scores for CVE-2015-8746

References for CVE-2015-8746