CVE-2021-27645

CVSS V2 Low 1.9 CVSS V3 Low 2.5
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.
Overview
  • CVE ID
  • CVE-2021-27645
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-02-24T15:15:13
  • Last Modified Date
  • 2022-11-04T20:06:08
Weakness Enumerations
CWE URL
CWE-415 http://cwe.mitre.org/data/definitions/415.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* 1 OR 2.29 2.33
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 1.9
  • Severity
  • LOW
  • Exploitability Score
  • 3.4
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • LOW
  • Base Score
  • 2.5
  • Base Severity
  • LOW
  • Exploitability Score
  • 1
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LZNT6KTMCCWPWXEOGSHD3YLYZKUGMH5/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I7TS26LIZSOBLGJEZMJX4PXT5BQDE2WS/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202107-07 Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=27462 Issue Tracking Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-27645
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27645
History
Created Old Value New Value Data Type Notes
2022-05-10 07:08:55 Added to TrackCVE
2022-12-05 22:41:48 2021-02-24T15:15Z 2021-02-24T15:15:13 CVE Published Date updated
2022-12-05 22:41:48 2022-11-04T20:06:08 CVE Modified Date updated
2022-12-05 22:41:48 Analyzed Vulnerability Status updated
2022-12-05 22:41:52 References updated