--- title: "CVE-2024-33601\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2024-33601?format=md keywords: index, follow --- # CVE-2024-33601 Publication date 6 May 2024 Last updated 4 August 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **7.3 · High** [Score breakdown](https://ubuntu.com/security/CVE-2024-33601?format=md#impact-score) Toggle side navigation ## Description nscd: netgroup cache may terminate daemon on memory allocation failure The Name Service Cache Daemon's (nscd) netgroup cache uses xmalloc or xrealloc and these functions may terminate the process due to a memory allocation failure resulting in a denial of service to the clients. The flaw was introduced in glibc 2.15 when the cache was added to nscd. This vulnerability is only present in the nscd binary. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | eglibc | 26.04 LTS resolute | Not in release | | 25.10 questing | Not in release | | 25.04 plucky | Not in release | | 24.10 oracular | Not in release | | 24.04 LTS noble | Not in release | | 23.10 mantic | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 14.04 LTS trusty | Needs evaluation | | glibc | 26.04 LTS resolute | Not affected | | 25.10 questing | Not affected | | 25.04 plucky | Not affected | | 24.10 oracular | Not affected | | 24.04 LTS noble | Fixed 2.39-0ubuntu8.2 | | 23.10 mantic | Fixed 2.38-1ubuntu6.3 | | 22.04 LTS jammy | Fixed 2.35-0ubuntu3.8 | | 20.04 LTS focal | Fixed 2.31-0ubuntu9.16 | | 18.04 LTS bionic | Fixed 2.27-3ubuntu1.6+esm3 Ubuntu Pro | | 16.04 LTS xenial | Fixed 2.23-0ubuntu11.3+esm7 Ubuntu Pro | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2024-33601?format=md#patch-details) ### Get expanded security coverage with Ubuntu Pro Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use. [Get Ubuntu Pro](https://ubuntu.com/pro) [30-day free trial](https://ubuntu.com/pro/free-trial) ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | glibc | * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 7.3 · High * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | Low | | Privileges required | None | | User interaction | None | | Scope | Unchanged | | Confidentiality impact | Low | | Integrity impact | Low | | Availability impact | Low | * Scores | Parameter | Value | | --- | --- | | Base score | 7.3 · High | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-33601) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2024-33601) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2024-33601) * [Debian](https://security-tracker.debian.org/tracker/CVE-2024-33601) ### Related Ubuntu Security Notices (USN) + [USN-6804-1](https://usn.ubuntu.com/USN-6804-1) + GNU C Library vulnerabilities + 31 May 2024 ### Other references * * *