CVE-2018-5729
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with an admin-level account. Limited direct impact.
- Exploit odds
- 2.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.6% in the next 30 days (EPSS).
- Severity: 4.7 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 2.6% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Undergoing Analysis
Affected
- Mit Kerberos 5 < 5-1.21.2
- Fedoraproject Fedora 26
- Fedoraproject Fedora 27
- Debian Linux 8.0
- Debian Linux 9.0
- Redhat Enterprise Linux Desktop 7.0
- Redhat Enterprise Linux Server 7.0
- Redhat Enterprise Linux Workstation 7.0
Attack profile CVSS 3.1 · 4.7
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Raw vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2018-5729.md and follow it. Check whether this project is affected by CVE-2018-5729. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://bugzilla.redhat.com/show_bug.cgi?id=1551083
- https://github.com/krb5/krb5/commit/e1caf6fb74981da62039846931ebdffed71309d1
- https://bugzilla.redhat.com/show_bug.cgi?id=1551083
- https://github.com/krb5/krb5/commit/e1caf6fb74981da62039846931ebdffed71309d1
References
- http://www.securitytracker.com/id/1042071
- https://access.redhat.com/errata/RHBA-2019:0327
- https://access.redhat.com/errata/RHSA-2018:3071
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891869
- https://bugzilla.redhat.com/show_bug.cgi?id=1551083
- https://github.com/krb5/krb5/commit/e1caf6fb74981da62039846931ebdffed71309d1
- https://lists.debian.org/debian-lts-announce/2019/01/msg00020.html
- https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GK5T6JPMBHBPKS7HNGHYUUF4KKRMNSNU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIFUL3CPM4S5TOXTTOCQ3CUZN6XCXUTR/
- http://www.securitytracker.com/id/1042071
- https://access.redhat.com/errata/RHBA-2019:0327
- https://access.redhat.com/errata/RHSA-2018:3071
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891869
- https://bugzilla.redhat.com/show_bug.cgi?id=1551083
- https://github.com/krb5/krb5/commit/e1caf6fb74981da62039846931ebdffed71309d1
- https://lists.debian.org/debian-lts-announce/2019/01/msg00020.html
- https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GK5T6JPMBHBPKS7HNGHYUUF4KKRMNSNU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIFUL3CPM4S5TOXTTOCQ3CUZN6XCXUTR/