Buffer overflow in nbd.sourceforge.net nbd

1) Buffer overflow

EUVDB-ID: #VU45303

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2011-0530

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Buffer overflow in the mainloop function in nbd-server.c in the server in Network Block Device (nbd) before 2.9.20 might allow remote attackers to execute arbitrary code via a long request. NOTE: this issue exists because of a CVE-2005-3534 regression.

Mitigation

Install update from vendor's website.

Vulnerable software versions

nbd: 2.9.0 - 2.9.18

CPE2.3

• cpe:2.3:a:nbd.sourceforge.net:nbd:2.9.0:*:*:*:*:*:*:*
• cpe:2.3:a:nbd.sourceforge.net:nbd:2.9.1:*:*:*:*:*:*:*
• cpe:2.3:a:nbd.sourceforge.net:nbd:2.9.2:*:*:*:*:*:*:*

External links

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=611187
https://lists.fedoraproject.org/pipermail/package-announce/2011-February/054071.html
https://lists.fedoraproject.org/pipermail/package-announce/2011-February/054083.html
https://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
https://openwall.com/lists/oss-security/2011/01/28/3
https://openwall.com/lists/oss-security/2011/01/31/7
https://secunia.com/advisories/43353
https://secunia.com/advisories/43610
https://security.gentoo.org/glsa/glsa-201206-35.xml
https://www.debian.org/security/2011/dsa-2183
https://www.securityfocus.com/bid/46572
https://www.vupen.com/english/advisories/2011/0403
https://www.vupen.com/english/advisories/2011/0582
https://bugzilla.redhat.com/show_bug.cgi?id=673562
https://exchange.xforce.ibmcloud.com/vulnerabilities/65720
https://github.com/yoe/nbd/commit/3ef52043861ab16352d49af89e048ba6339d6df8
https://hermes.opensuse.org/messages/8086846

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.