DEBIAN-CVE-2021-27645

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2021-27645
Downstream
DLA-3152-1
Published: 24 Feb 2021, 15:15
Last modified:28 Apr 2026, 20:22

Vulnerability Summary

Overall Risk (default)
low
10/100
CVSS Score
2.5 LOW
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 Feb 2021, 15:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:22
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•LOW•Score: 2.5CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected Systems

  • debian•glibc

    < 2.31-10 | < 2.31-10 | < 2.31-10 | < 2.31-10

References (1)