#VU31839 Buffer overflow in DHCP - CVE-2013-2266
Vulnerability identifier: #VU31839
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:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
DHCP
Server applications /
Other server solutions
Vendor: ISC
Description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
libdns in ISC BIND 9.7.x and 9.8.x before 9.8.4-P2, 9.8.5 before 9.8.5b2, 9.9.x before 9.9.2-P2, and 9.9.3 before 9.9.3b2 on UNIX platforms allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression, as demonstrated by a memory-exhaustion attack against a machine running a named process.
Mitigation
Install update from vendor's website.
Vulnerable software versions
DHCP: 0.7.7
External links
https://linux.oracle.com/errata/ELSA-2014-1244
https://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-April/101500.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-April/101603.html
https://marc.info/?l=bugtraq&m=136804614120794&w=2
https://rhn.redhat.com/errata/RHSA-2013-0689.html
https://rhn.redhat.com/errata/RHSA-2013-0690.html
https://support.apple.com/kb/HT5880
https://www.debian.org/security/2013/dsa-2656
https://www.isc.org/software/bind/advisories/cve-2013-2266
https://www.securityfocus.com/bid/58736
https://www.ubuntu.com/usn/USN-1783-1
https://kb.isc.org/article/AA-00871/
https://kb.isc.org/article/AA-00879/
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19579
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.
