Security readout for executives and security teams
Plain-English summary
This issue affects Univention Corporate Server systems running univention-directory-notifier 12.0.1-3 or earlier. A network-reachable component can intentionally expose information, causing confidentiality loss. The source bundle names 12.0.1-4 and later as fixed, but does not provide CVSS scoring or business impact detail.
Executive priority
Treat this as a targeted update priority for Univention environments, not a broad emergency. If affected systems support identity, directory, or administrative workflows, schedule remediation promptly because the stated impact is confidentiality loss.
Technical view
CVE-2019-1010283 is a CWE-213 information exposure issue in data_on_connection() in src/callback.c of univention-directory-notifier. The attack vector is network connectivity. Affected versions are 12.0.1-3 and earlier, with 12.0.1-4 and later identified as fixed.
Likely exposure
Exposure is limited to environments using Univention Corporate Server with the univention-directory-notifier package at 12.0.1-3 or earlier. Risk increases if the notifier component is reachable over a network by untrusted systems.
Exploitation context
The provided sources do not state active exploitation, public exploitation, or KEV listing. They identify network connectivity as the attack vector and confidentiality loss as the impact, but provide no CVSS vector or exploitability detail.
Researcher notes
Evidence is sparse: the bundle identifies the vulnerable function, CWE, affected package range, network attack vector, and fixed version. It does not include CVSS, proof-of-concept status, detailed data exposure scope, or observed exploitation.
Mitigation direction
- Upgrade univention-directory-notifier to 12.0.1-4 or later.
- Confirm vendor guidance in the Univention bug record and commit reference.
- Restrict network access to affected notifier services where operationally possible.
- Prioritize systems handling sensitive directory or identity data.
Validation and detection
- Inventory Univention Corporate Server hosts and installed univention-directory-notifier versions.
- Confirm no production host remains on 12.0.1-3 or earlier.
- Verify fixed hosts report 12.0.1-4 or later.
- Review whether notifier network access is limited to trusted systems.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-213: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2019-1010283 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/univention/univention-corporate-server/commit/a28053045bd2e778c50ed1acaf4e52e1e34f6e34CVE reference · x_refsource_MISC
- https://forge.univention.org/bugzilla/show_bug.cgi?id=48427CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.