HOMEVULNERABILITIESCVE-2023-36054
MEDIUM

CVE-2023-36054

CWE-824Published: August 7, 2023· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count.

NVD Source

Technical Analysis

CVE-2023-36054 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
netapp5 product(s)
active iq unified managerclustered data ontaphcimanagement services for element softwareontap tools
Source: NVD CPE · 8 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

PATCHhttps://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cdd
PATCHhttps://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-final
PATCHhttps://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-final
PATCHhttps://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cdd
PATCHhttps://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-final
PATCHhttps://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-final
ADVISORYhttps://lists.debian.org/debian-lts-announce/2023/10/msg00031.html
ADVISORYhttps://security.netapp.com/advisory/ntap-20230908-0004/
ADVISORYhttps://lists.debian.org/debian-lts-announce/2023/10/msg00031.html
ADVISORYhttps://security.netapp.com/advisory/ntap-20230908-0004/

All References (12)

→
https://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cddPatch
→
https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-finalPatch
→
https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-finalPatch
→
https://lists.debian.org/debian-lts-announce/2023/10/msg00031.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230908-0004/Third Party Advisory
→
https://web.mit.edu/kerberos/www/advisories/Product
→
https://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cddPatch
→
https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-finalPatch
→
https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-finalPatch
→
https://lists.debian.org/debian-lts-announce/2023/10/msg00031.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230908-0004/Third Party Advisory
→
https://web.mit.edu/kerberos/www/advisories/Product

Quick Facts

CVE IDCVE-2023-36054
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-824
CISA KEVNo
Affected3 vendor(s)
PublishedAug 7, 2023

Related CVEs (CWE-824)

CVE-2009-0846
10.0
CVE-2007-2442
10.0
CVE-2020-11138
9.8
CVE-2018-11743
9.8
CVE-2018-14356
9.8
CVE-2020-25573
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-36054 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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