#VU91220 Buffer overflow in Linux kernel - CVE-2008-2750

Vulnerability identifier: #VU91220

Vulnerability 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-2008-2750

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 perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the pppol2tp_recvmsg() function in drivers/net/pppol2tp.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

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External links
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6b6707a50c7598a83820077393f8823ab791abf8
https://kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.26-rc6
https://lists.opensuse.org/opensuse-security-announce/2008-07/msg00009.html
https://secunia.com/advisories/30719
https://secunia.com/advisories/30901
https://secunia.com/advisories/30920
https://secunia.com/advisories/31107
https://secunia.com/advisories/31202
https://securitytracker.com/id?1020297
https://wiki.rpath.com/wiki/Advisories:rPSA-2008-0207
https://www.mandriva.com/security/advisories?name=MDVSA-2008:167
https://www.openwall.com/lists/oss-security/2008/06/19/3
https://www.securityfocus.com/bid/29747
https://www.ubuntu.com/usn/usn-625-1
https://www.vupen.com/english/advisories/2008/1854
https://exchange.xforce.ibmcloud.com/vulnerabilities/43111
https://issues.rpath.com/browse/RPL-2629
https://www.redhat.com/archives/fedora-package-announce/2008-July/msg00082.html

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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.