MediumCVE-2024-2199

    389-ds-base: malformed userpassword may cause crash at do_modify in slapd/modify.c (CVE-2024-2199)

    Published Sources: Debian LTS, CVE.org

    Share

    What is affected, what to do

    A denial of service vulnerability was found in 389-ds-base ldap server. This issue may allow an authenticated user to cause a server crash while modifying `userPassword` using malformed input.

    Update 389-ds-base to version 3.1.1, Red Hat Directory Server 11.5 E4S for RHEL 8 to version 8060020250210084424.0ca98e7e, Red Hat Directory Server 11.8 for RHEL 8 to version 8090020240606122459.91529cd0.

    Affected
    • 389-ds-base lt *..3.1.1
    • Red Hat Directory Server 11.5 E4S for RHEL 8 lt *..8060020250210084424.0ca98e7e
    • Red Hat Directory Server 11.8 for RHEL 8 lt *..8090020240606122459.91529cd0
    • Red Hat Directory Server 11.9 for RHEL 8 lt *..8100020240604161237.37ed7c03
    • Red Hat Directory Server 12.4 for RHEL 9 lt *..9040020240604143706.1674d574
    • Red Hat Enterprise Linux 7 lt *..0:1.3.11.1-5.el7_9
    • Red Hat Enterprise Linux 8 lt *..8100020240613122040.25e700aa
    • Red Hat Enterprise Linux 8.8 Extended Update Support lt *..8080020240807050952.6dbb3803
    • Red Hat Enterprise Linux 9 lt *..0:2.4.5-8.el9_4
    • Red Hat Enterprise Linux 9.2 Extended Update Support lt *..0:2.2.4-9.el9_2
    Fixed in
    • 389-ds-base 3.1.1
    • Red Hat Directory Server 11.5 E4S for RHEL 8 8060020250210084424.0ca98e7e
    • Red Hat Directory Server 11.8 for RHEL 8 8090020240606122459.91529cd0
    • Red Hat Directory Server 11.9 for RHEL 8 8100020240604161237.37ed7c03
    • Red Hat Directory Server 12.4 for RHEL 9 9040020240604143706.1674d574
    • Red Hat Enterprise Linux 7 0:1.3.11.1-5.el7_9
    • Red Hat Enterprise Linux 8 8100020240613122040.25e700aa
    • Red Hat Enterprise Linux 8.8 Extended Update Support 8080020240807050952.6dbb3803
    • Red Hat Enterprise Linux 9 0:2.4.5-8.el9_4
    • Red Hat Enterprise Linux 9.2 Extended Update Support 0:2.2.4-9.el9_2

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    5.7

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: NVD, CVSS v3

    5.7

    CVSS v3

    Severity Medium on the scale from 0 to 10.

    Source: Debian LTS, CVE.org

    0.6 %

    EPSS score

    Low — model estimates < 1% exploitation likelihood.

    Source: FIRST EPSS, percentile 46.9

    Show all metrics
    Severity
    Medium
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    51.38 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    5.7 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    5.7
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    0.6 %
    Low — model estimates < 1% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    46.9
    High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published
    CISA assessment (SSVC)
    Exploitation: none known · not automatable · Technical impact: partial
    Source: CISA Vulnrichment, as of 28 May 2024
    CWE

    CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.

    Read in glossary
    CWE-20

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    A denial of service vulnerability was found in 389-ds-base ldap server. This issue may allow an authenticated user to cause a server crash while modifying `userPassword` using malformed input.

    Source: Debian LTS Advisories, NVD (NIST), cvelistv5

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    —389-ds-base
    • < 3.1.1
    • 3.1.1
    Red HatRed Hat Directory Server 11.5 E4S for RHEL 8
    • < 8060020250210084424.0ca98e7e
    • 8060020250210084424.0ca98e7e
    Red HatRed Hat Directory Server 11.8 for RHEL 8
    • < 8090020240606122459.91529cd0
    • 8090020240606122459.91529cd0
    Red HatRed Hat Directory Server 11.9 for RHEL 8
    • < 8100020240604161237.37ed7c03
    • 8100020240604161237.37ed7c03
    Red HatRed Hat Directory Server 12.4 for RHEL 9
    • < 9040020240604143706.1674d574
    • 9040020240604143706.1674d574
    Red HatRed Hat Enterprise Linux 6
    • —
    • —
    Red HatRed Hat Enterprise Linux 7
    • < 0:1.3.11.1-5.el7_9
    • 0:1.3.11.1-5.el7_9
    Red HatRed Hat Enterprise Linux 8
    • < 8100020240613122040.25e700aa
    • 8100020240613122040.25e700aa
    Red HatRed Hat Enterprise Linux 8.8 Extended Update Support
    • < 8080020240807050952.6dbb3803
    • 8080020240807050952.6dbb3803
    Red HatRed Hat Enterprise Linux 9
    • < 0:2.4.5-8.el9_4
    • 0:2.4.5-8.el9_4
    Red HatRed Hat Enterprise Linux 9.2 Extended Update Support
    • < 0:2.2.4-9.el9_2
    • 0:2.2.4-9.el9_2

    Vendors and products

    Affected operating systems

    Affected operating systems
    Linuxdebian389-ds-basebullseye

    Weakness classes (CWE)

    • CWE-20Improper Input Validation

      Class

      The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

      Entry at MITRE CWE-20

    References & sources

    Embed badge

    Show the severity and KEV status of this vulnerability on your site – with a link back here. The image is updated hourly.

    Badge preview for CVE-2024-2199
    <a href="https://intel.neosec.eu/en/cve/CVE-2024-2199"><img src="https://intel.neosec.eu/badge/cve/CVE-2024-2199.svg?lang=en" alt="CVE-2024-2199 – NEOSEC Intel" height="20"></a>