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

2024-05-0619:22:07

CWE-617

glibc

github.com

name service cache daemon

memory allocation failure

denial of service

glibc 2.15

nscd binary

AI Score

6.3

Confidence

High

EPSS

Percentile

15.7%

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

JSON

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.

CNA Affected

[
  {
    "vendor": "The GNU C Library",
    "product": "glibc",
    "versions": [
      {
        "status": "affected",
        "version": "2.15",
        "lessThan": "2.40",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:gnu:glibc:-:*:*:*:*:*:*:*"
    ],
    "vendor": "gnu",
    "product": "glibc",
    "versions": [
      {
        "status": "affected",
        "version": "2.15",
        "lessThan": "2.40",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  }
]