NULL pointer dereference in Linux kernel ipv4

1) NULL pointer dereference

EUVDB-ID: #VU91015

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2009-1298

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to NULL pointer dereference within the printk() function in net/ipv4/ip_fragment.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=bbf31bf18d34caa87dd01f08bf713635593697f2
https://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
https://secunia.com/advisories/37624
https://secunia.com/advisories/38017
https://twitter.com/spendergrsec/statuses/6339560349
https://wiki.rpath.com/Advisories:rPSA-2009-0161
https://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32
https://www.mandriva.com/security/advisories?name=MDVSA-2009:329
https://www.osvdb.org/60788
https://www.securityfocus.com/archive/1/508517/100/0/threaded
https://www.theregister.co.uk/2009/12/11/linux_kernel_bugs_patched/
https://www.ubuntu.com/usn/USN-869-1
https://bugzilla.redhat.com/show_bug.cgi?id=544144
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00453.html
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00496.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.