Vulnerability Details : CVE-2012-6700
The decode_search function in dhcp.c in dhcpcd 3.x does not properly free allocated memory, which allows remote DHCP servers to cause a denial of service via a crafted response.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2012-6700
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:dhcpcd_project:dhcpcd:3.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:dhcpcd_project:dhcpcd:3.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:dhcpcd_project:dhcpcd:3.1.9:*:*:*:*:*:*:*
- cpe:2.3:a:dhcpcd_project:dhcpcd:3.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:dhcpcd_project:dhcpcd:3.2.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2012-6700
0.50%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2012-6700
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2012-6700
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2012-6700
-
http://www.openwall.com/lists/oss-security/2015/12/03/1
oss-security - Re: CVE Request: dhcpcd 3.x, potentially other versions too
-
https://launchpadlibrarian.net/228152582/dhcp.c.patch
-
http://www.openwall.com/lists/oss-security/2015/12/02/1
oss-security - CVE Request: dhcpcd 3.x, potentially other versions too
-
https://bugs.launchpad.net/ubuntu/+source/dhcpcd/+bug/1517226
Bug #1517226 “Remote double-free and memory corruption vulnerabi...” : Bugs : dhcpcd package : Ubuntu
-
http://www.debian.org/security/2016/dsa-3534
Debian -- Security Information -- DSA-3534-1 dhcpcd
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