Vulnerability CVE-2014-7822


Published: 2015-03-16

Description:
The implementation of certain splice_write file operations in the Linux kernel before 3.16 does not enforce a restriction on the maximum size of a single file, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted splice system call, as demonstrated by use of a file descriptor associated with an ext4 filesystem.

See advisories in our WLB2 database:
Topic
Author
Date
Low
Linux Kernel splice() System Call Local DoS
Emeric Nasi
14.04.2015

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8d0207652cbe27d1f962050737848e5ad4671958
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html
http://rhn.redhat.com/errata/RHSA-2015-0102.html
http://rhn.redhat.com/errata/RHSA-2015-0164.html
http://rhn.redhat.com/errata/RHSA-2015-0674.html
http://rhn.redhat.com/errata/RHSA-2015-0694.html
http://www.debian.org/security/2015/dsa-3170
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/72347
http://www.ubuntu.com/usn/USN-2541-1
http://www.ubuntu.com/usn/USN-2542-1
http://www.ubuntu.com/usn/USN-2543-1
http://www.ubuntu.com/usn/USN-2544-1
https://bugzilla.redhat.com/show_bug.cgi?id=1163792
https://github.com/torvalds/linux/commit/8d0207652cbe27d1f962050737848e5ad4671958
https://www.exploit-db.com/exploits/36743/

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