Information disclosure in FreeBSD

1) Information disclosure

EUVDB-ID: #VU42344

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-6832

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The nand_ioctl function in sys/dev/nand/nand_geom.c in the nand driver in the kernel in FreeBSD 10 and earlier does not properly initialize a certain data structure, which allows local users to obtain sensitive information from kernel memory via a crafted ioctl call.

Mitigation

Install update from vendor's website.

Vulnerable software versions

FreeBSD: 0.4_1 - 9.2

CPE2.3

• cpe:2.3:o:freebsd_foundation:freebsd:0.4_1:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd_foundation:freebsd:1.0:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd_foundation:freebsd:1.1:*:*:*:*:*:*:*

External links

https://archives.neohapsis.com/archives/fulldisclosure/2013-11/0106.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.