Buffer overflow in Linux kernel nfsd

1) Buffer overflow

EUVDB-ID: #VU91219

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-2008-3915

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to memory corruption within the init_state() function in fs/nfsd/nfs4acl.c. A remote non-authenticated attacker can execute arbitrary code.

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=commit;h=91b80969ba466ba4b915a4a1d03add8c297add3f
https://lkml.org/lkml/2008/9/3/286
https://secunia.com/advisories/31881
https://secunia.com/advisories/32190
https://secunia.com/advisories/32393
https://www.debian.org/security/2008/dsa-1636
https://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.26.4
https://www.openwall.com/lists/oss-security/2008/09/04/18
https://www.openwall.com/lists/oss-security/2008/09/04/4
https://www.redhat.com/support/errata/RHSA-2008-0857.html
https://www.securityfocus.com/bid/31133
https://www.ubuntu.com/usn/usn-659-1
https://bugzilla.redhat.com/show_bug.cgi?id=461101
https://exchange.xforce.ibmcloud.com/vulnerabilities/45055

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.