Medium severity · published Feb 20, 2020
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…
6.5
CVSS
1.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
before 10.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-2923
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-2923
Mailing List
http://openwall.com/lists/oss-security/2015/04/04/2
Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6fd99094de2b83d1d4c8457f2c83483b2828e75a
Mailing List
https://lists.freebsd.org/pipermail/freebsd-net/2015-April/041934.html
Mitigation
https://www.freebsd.org/security/advisories/FreeBSD-SA-15:09.ipv6.asc
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