Vulnerability Details : CVE-2015-2923
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.
Vulnerability category: Input validation
Products affected by CVE-2015-2923
- cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-2923
0.23%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-2923
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.3
|
LOW | AV:A/AC:L/Au:N/C:N/I:N/A:P |
6.5
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2015-2923
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-2923
-
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6fd99094de2b83d1d4c8457f2c83483b2828e75a
kernel/git/torvalds/linux.git - Linux kernel source treePatch;Third Party Advisory
-
http://openwall.com/lists/oss-security/2015/04/04/2
oss-security - Re: CVE Request : IPv6 Hop limit lowering via RA messagesMailing List;Third Party Advisory
-
https://www.freebsd.org/security/advisories/FreeBSD-SA-15:09.ipv6.asc
Mitigation;Vendor Advisory
-
https://lists.freebsd.org/pipermail/freebsd-net/2015-April/041934.html
[oss-security] CVE Request : IPv6 Hop limit lowering via RA messagesMailing List;Vendor Advisory
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