#VU41051 NULL pointer dereference in Linux kernel - CVE-2014-7841


| Updated: 2020-08-09

Vulnerability identifier: #VU41051

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2014-7841

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a malformed INIT chunk.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Linux kernel: 3.0 - 3.0.68, 3.1 - 3.17.2, 3.2

External links
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e40607cbe270a9e8360907cb1e62ddf0736e4864
https://linux.oracle.com/errata/ELSA-2015-3004.html
https://linux.oracle.com/errata/ELSA-2015-3005.html
https://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
https://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.html
https://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
https://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html
https://rhn.redhat.com/errata/RHSA-2015-0087.html
https://rhn.redhat.com/errata/RHSA-2015-0102.html
https://rhn.redhat.com/errata/RHSA-2015-0284.html
https://rhn.redhat.com/errata/RHSA-2015-0285.html
https://rhn.redhat.com/errata/RHSA-2015-0695.html
https://secunia.com/advisories/62305
https://secunia.com/advisories/62597
https://secunia.com/advisories/62735
https://www.debian.org/security/2014/dsa-3093
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4
https://www.openwall.com/lists/oss-security/2014/11/13/6
https://www.securityfocus.com/bid/71081
https://bugzilla.redhat.com/show_bug.cgi?id=1163087
https://github.com/torvalds/linux/commit/e40607cbe270a9e8360907cb1e62ddf0736e4864
https://support.f5.com/kb/en-us/solutions/public/16000/000/sol16016.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability


SUSE update for the Linux Kernel
NULL pointer dereference in Linux kernel