MEDIUM
CVE-2015-8631
CWE-772Published: February 13, 2016· Updated: Jun 17, 2026
6.5
CVSS v3.1
Official Description
Multiple memory leaks in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 allow remote authenticated users to cause a denial of service (memory consumption) via a request specifying a NULL principal name.
Technical Analysis
CVE-2015-8631 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Debian1 product(s)
debian linux
mit1 product(s)
kerberos 5
openSUSE2 product(s)
leapopensuse
Oracle1 product(s)
linux
Red Hat6 product(s)
enterprise linux desktopenterprise linux eusenterprise linux serverenterprise linux server ausenterprise linux server tusenterprise linux workstation
Source: NVD CPE · 29 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (18)
→
http://krbdev.mit.edu/rt/Ticket/Display.html?id=8343Vendor Advisory
→
http://lists.opensuse.org/opensuse-updates/2016-02/msg00059.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-updates/2016-02/msg00110.htmlMailing List · Third Party Advisory
→
http://rhn.redhat.com/errata/RHSA-2016-0493.htmlThird Party Advisory
→
http://rhn.redhat.com/errata/RHSA-2016-0532.htmlThird Party Advisory
→
http://www.debian.org/security/2016/dsa-3466Third Party Advisory
→
→
http://www.securitytracker.com/id/1034916Third Party Advisory · VDB Entry
→
https://github.com/krb5/krb5/commit/83ed75feba32e46f736fcce0d96a0445f29b96c2Patch · Third Party Advisory
→
http://krbdev.mit.edu/rt/Ticket/Display.html?id=8343Vendor Advisory
→
http://lists.opensuse.org/opensuse-updates/2016-02/msg00059.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-updates/2016-02/msg00110.htmlMailing List · Third Party Advisory
→
http://rhn.redhat.com/errata/RHSA-2016-0493.htmlThird Party Advisory
→
http://rhn.redhat.com/errata/RHSA-2016-0532.htmlThird Party Advisory
→
http://www.debian.org/security/2016/dsa-3466Third Party Advisory
Quick Facts
CVE IDCVE-2015-8631
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-772
CISA KEVNo
Affected5 vendor(s)
PublishedFeb 13, 2016
Related CVEs (CWE-772)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2015-8631 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.