CVE-2021-27645

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Source
https://cve.org/CVERecord?id=CVE-2021-27645
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27645.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-27645
Downstream
Related
Published
2021-02-24T15:15:13.837Z
Modified
2026-03-15T22:37:05.775734Z
Severity
  • 2.5 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c.

References

Affected packages

Git / sourceware.org/git/glibc.git

Affected ranges

Type
GIT
Repo
https://sourceware.org/git/glibc.git
Events
Introduced
56c86f5dd516284558e106d04b92875d5b623b7a
Last affected
9826b03b747b841f5fc6de2054bf1ef3f5c4bdf3
Database specific 
{
    "versions": [
        {
            "introduced": "2.29"
        },
        {
            "last_affected": "2.33"
        }
    ]
}

Affected versions

Other
changelog-ends-here
glibc-2.*
glibc-2.29
glibc-2.29.9000
glibc-2.30
glibc-2.30.9000
glibc-2.31
glibc-2.31.9000
glibc-2.32
glibc-2.32.9000
glibc-2.33

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "33"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "34"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27645.json"