7.3High

CVE-2024-33601nscd: netgroup cache may terminate daemon on memory allocation failure

The GNU C Library glibc; gnu glibc; Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP; Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Published: 2024-05-06 22:22 (2 years ago)

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.

Weakness (CWE): CWE-617

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
gnu	glibc	2.15 – < 2.40
The GNU C Library	glibc	2.15 – < 2.40
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	V3.1.5
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	V3.1.5
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	V3.1.5

References and patches

CVSS score

7.3High

Source: CISA-ADP · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS (chance of exploitation in 30 days)

1.07%

higher than 66% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: yes
Technical impact: partial

Timeline

ID reserved2024-04-24
Published2024-05-06 22:22
Reached IP-DB2026-10-24 23:54
Last updated2026-10-15 03:40

Assigned by (CNA): glibc

View at source: CVE.org · NVD

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