HOMEVULNERABILITIESCVE-2012-1015
CRITICAL

CVE-2012-1015

CWE-20Published: August 6, 2012· Updated: Jun 16, 2026

9.3
CVSS v3.1

Official Description

The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free, heap memory corruption, and daemon crash) via a crafted AS-REQ request.

NVD Source

Technical Analysis

CVE-2012-1015 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected Vendors & Products

mit1 product(s)
kerberos 5
Source: NVD CPE · 11 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

PATCHhttp://web.mit.edu/kerberos/advisories/MITKRB5-SA-2012-001.txt
PATCHhttp://web.mit.edu/kerberos/advisories/MITKRB5-SA-2012-001.txt

All References (10)

→
http://lists.opensuse.org/opensuse-updates/2012-08/msg00016.html
→
http://rhn.redhat.com/errata/RHSA-2012-1131.html
→
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2012-001.txtPatch · Vendor Advisory
→
http://www.debian.org/security/2012/dsa-2518
→
http://www.mandriva.com/security/advisories?name=MDVSA-2012:120
→
http://lists.opensuse.org/opensuse-updates/2012-08/msg00016.html
→
http://rhn.redhat.com/errata/RHSA-2012-1131.html
→
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2012-001.txtPatch · Vendor Advisory
→
http://www.debian.org/security/2012/dsa-2518
→
http://www.mandriva.com/security/advisories?name=MDVSA-2012:120

Quick Facts

CVE IDCVE-2012-1015
CVSS Score9.3 / 10
SeverityCRITICAL
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedAug 6, 2012

Related CVEs (CWE-20)

CVE-2021-21321
10.0
CVE-2003-1425
10.0
CVE-2020-6962
10.0
CVE-2020-13753
10.0
CVE-2007-6494
10.0
CVE-2007-6176
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2012-1015 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.
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