Executive Summary

Informations
Name CVE-2021-27645 First vendor Publication 2021-02-24
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Overall CVSS Score 2.5
Base Score 2.5 Environmental Score 2.5
impact SubScore 1.4 Temporal Score 2.5
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 1.9 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27645

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-415 Double Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 128
Os 1
Os 2

Sources (Detail)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
Source Url
GENTOO https://security.gentoo.org/glsa/202107-07
MISC https://sourceware.org/bugzilla/show_bug.cgi?id=27462
MLIST https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html

Alert History

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Date Informations
2023-11-07 21:35:37
  • Multiple Updates
2022-11-05 00:27:52
  • Multiple Updates
2022-10-18 00:27:27
  • Multiple Updates
2022-05-24 05:27:57
  • Multiple Updates
2022-01-29 01:47:45
  • Multiple Updates
2021-08-05 01:42:36
  • Multiple Updates
2021-07-06 12:40:14
  • Multiple Updates
2021-05-22 09:22:59
  • Multiple Updates
2021-05-04 14:09:29
  • Multiple Updates
2021-04-22 03:13:26
  • Multiple Updates
2021-03-26 12:38:34
  • First insertion