#VU30982 Buffer overflow in Linux kernel - CVE-2007-6762

Vulnerability identifier: #VU30982

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2007-6762

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

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

Vendor: Linux Foundation

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

In the Linux kernel before 2.6.20, there is an off-by-one bug in net/netlabel/netlabel_cipso_v4.c where it is possible to overflow the doi_def->tags[] array.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 2.6.0 - 2.6.19.7

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External links
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a2f11c227bdf292b3a2900ad04139d301b56ac4
https://github.com/torvalds/linux/commit/2a2f11c227bdf292b3a2900ad04139d301b56ac4
https://mirrors.edge.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20
https://support.f5.com/csp/article/K05342145
https://support.f5.com/csp/article/K05342145?utm_source=f5support&utm_medium=RSS

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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.