NULL pointer dereference in Mit Kerberos 5
CVE-2018-5729
MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to cause a denial of service (NULL pointer dereference) or bypass a DN container check by supplying tagged data that is internal to the database module.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.026 (84.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Mit Kerberos 5
- Debian Linux — versions 8.0, 9.0
- Fedoraproject Fedora — versions 26, 27
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1042071 (VDB Entry, Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- github.com/krb5/krb5/commit/e1caf6fb74981da62039846931ebdffed71309d1 (Patch, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3071 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
- bugs.debian.org/cgi-bin/bugreport.cgi (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/01/msg00020.html (mailing-list, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHBA-2019:0327 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/09/msg00019.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-5729?
- CVE-2018-5729 is a medium-severity vulnerability in Mit Kerberos 5, classified under NULL Pointer Dereference. CVSS score: 4.7/10. Published 2018-03-06.
- How severe is CVE-2018-5729?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2018-5729 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.