Rapid7 Vulnerability & Exploit Database

Oracle Linux: CVE-2021-27645: ELSA-2021-4358: glibc security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Oracle Linux: CVE-2021-27645: ELSA-2021-4358: glibc security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

Severity
1
CVSS
(AV:L/AC:H/Au:S/C:N/I:N/A:P)
Published
02/24/2021
Created
11/19/2021
Added
11/17/2021
Modified
11/30/2024

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. The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6), 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.

Solution(s)

  • oracle-linux-upgrade-compat-libpthread-nonshared
  • oracle-linux-upgrade-glibc
  • oracle-linux-upgrade-glibc-all-langpacks
  • oracle-linux-upgrade-glibc-benchtests
  • oracle-linux-upgrade-glibc-common
  • oracle-linux-upgrade-glibc-devel
  • oracle-linux-upgrade-glibc-headers
  • oracle-linux-upgrade-glibc-langpack-aa
  • oracle-linux-upgrade-glibc-langpack-af
  • oracle-linux-upgrade-glibc-langpack-agr
  • oracle-linux-upgrade-glibc-langpack-ak
  • oracle-linux-upgrade-glibc-langpack-am
  • oracle-linux-upgrade-glibc-langpack-an
  • oracle-linux-upgrade-glibc-langpack-anp
  • oracle-linux-upgrade-glibc-langpack-ar
  • oracle-linux-upgrade-glibc-langpack-as
  • oracle-linux-upgrade-glibc-langpack-ast
  • oracle-linux-upgrade-glibc-langpack-ayc
  • oracle-linux-upgrade-glibc-langpack-az
  • oracle-linux-upgrade-glibc-langpack-be
  • oracle-linux-upgrade-glibc-langpack-bem
  • oracle-linux-upgrade-glibc-langpack-ber
  • oracle-linux-upgrade-glibc-langpack-bg
  • oracle-linux-upgrade-glibc-langpack-bhb
  • oracle-linux-upgrade-glibc-langpack-bho
  • oracle-linux-upgrade-glibc-langpack-bi
  • oracle-linux-upgrade-glibc-langpack-bn
  • oracle-linux-upgrade-glibc-langpack-bo
  • oracle-linux-upgrade-glibc-langpack-br
  • oracle-linux-upgrade-glibc-langpack-brx
  • oracle-linux-upgrade-glibc-langpack-bs
  • oracle-linux-upgrade-glibc-langpack-byn
  • oracle-linux-upgrade-glibc-langpack-ca
  • oracle-linux-upgrade-glibc-langpack-ce
  • oracle-linux-upgrade-glibc-langpack-chr
  • oracle-linux-upgrade-glibc-langpack-cmn
  • oracle-linux-upgrade-glibc-langpack-crh
  • oracle-linux-upgrade-glibc-langpack-cs
  • oracle-linux-upgrade-glibc-langpack-csb
  • oracle-linux-upgrade-glibc-langpack-cv
  • oracle-linux-upgrade-glibc-langpack-cy
  • oracle-linux-upgrade-glibc-langpack-da
  • oracle-linux-upgrade-glibc-langpack-de
  • oracle-linux-upgrade-glibc-langpack-doi
  • oracle-linux-upgrade-glibc-langpack-dsb
  • oracle-linux-upgrade-glibc-langpack-dv
  • oracle-linux-upgrade-glibc-langpack-dz
  • oracle-linux-upgrade-glibc-langpack-el
  • oracle-linux-upgrade-glibc-langpack-en
  • oracle-linux-upgrade-glibc-langpack-eo
  • oracle-linux-upgrade-glibc-langpack-es
  • oracle-linux-upgrade-glibc-langpack-et
  • oracle-linux-upgrade-glibc-langpack-eu
  • oracle-linux-upgrade-glibc-langpack-fa
  • oracle-linux-upgrade-glibc-langpack-ff
  • oracle-linux-upgrade-glibc-langpack-fi
  • oracle-linux-upgrade-glibc-langpack-fil
  • oracle-linux-upgrade-glibc-langpack-fo
  • oracle-linux-upgrade-glibc-langpack-fr
  • oracle-linux-upgrade-glibc-langpack-fur
  • oracle-linux-upgrade-glibc-langpack-fy
  • oracle-linux-upgrade-glibc-langpack-ga
  • oracle-linux-upgrade-glibc-langpack-gd
  • oracle-linux-upgrade-glibc-langpack-gez
  • oracle-linux-upgrade-glibc-langpack-gl
  • oracle-linux-upgrade-glibc-langpack-gu
  • oracle-linux-upgrade-glibc-langpack-gv
  • oracle-linux-upgrade-glibc-langpack-ha
  • oracle-linux-upgrade-glibc-langpack-hak
  • oracle-linux-upgrade-glibc-langpack-he
  • oracle-linux-upgrade-glibc-langpack-hi
  • oracle-linux-upgrade-glibc-langpack-hif
  • oracle-linux-upgrade-glibc-langpack-hne
  • oracle-linux-upgrade-glibc-langpack-hr
  • oracle-linux-upgrade-glibc-langpack-hsb
  • oracle-linux-upgrade-glibc-langpack-ht
  • oracle-linux-upgrade-glibc-langpack-hu
  • oracle-linux-upgrade-glibc-langpack-hy
  • oracle-linux-upgrade-glibc-langpack-ia
  • oracle-linux-upgrade-glibc-langpack-id
  • oracle-linux-upgrade-glibc-langpack-ig
  • oracle-linux-upgrade-glibc-langpack-ik
  • oracle-linux-upgrade-glibc-langpack-is
  • oracle-linux-upgrade-glibc-langpack-it
  • oracle-linux-upgrade-glibc-langpack-iu
  • oracle-linux-upgrade-glibc-langpack-ja
  • oracle-linux-upgrade-glibc-langpack-ka
  • oracle-linux-upgrade-glibc-langpack-kab
  • oracle-linux-upgrade-glibc-langpack-kk
  • oracle-linux-upgrade-glibc-langpack-kl
  • oracle-linux-upgrade-glibc-langpack-km
  • oracle-linux-upgrade-glibc-langpack-kn
  • oracle-linux-upgrade-glibc-langpack-ko
  • oracle-linux-upgrade-glibc-langpack-kok
  • oracle-linux-upgrade-glibc-langpack-ks
  • oracle-linux-upgrade-glibc-langpack-ku
  • oracle-linux-upgrade-glibc-langpack-kw
  • oracle-linux-upgrade-glibc-langpack-ky
  • oracle-linux-upgrade-glibc-langpack-lb
  • oracle-linux-upgrade-glibc-langpack-lg
  • oracle-linux-upgrade-glibc-langpack-li
  • oracle-linux-upgrade-glibc-langpack-lij
  • oracle-linux-upgrade-glibc-langpack-ln
  • oracle-linux-upgrade-glibc-langpack-lo
  • oracle-linux-upgrade-glibc-langpack-lt
  • oracle-linux-upgrade-glibc-langpack-lv
  • oracle-linux-upgrade-glibc-langpack-lzh
  • oracle-linux-upgrade-glibc-langpack-mag
  • oracle-linux-upgrade-glibc-langpack-mai
  • oracle-linux-upgrade-glibc-langpack-mfe
  • oracle-linux-upgrade-glibc-langpack-mg
  • oracle-linux-upgrade-glibc-langpack-mhr
  • oracle-linux-upgrade-glibc-langpack-mi
  • oracle-linux-upgrade-glibc-langpack-miq
  • oracle-linux-upgrade-glibc-langpack-mjw
  • oracle-linux-upgrade-glibc-langpack-mk
  • oracle-linux-upgrade-glibc-langpack-ml
  • oracle-linux-upgrade-glibc-langpack-mn
  • oracle-linux-upgrade-glibc-langpack-mni
  • oracle-linux-upgrade-glibc-langpack-mr
  • oracle-linux-upgrade-glibc-langpack-ms
  • oracle-linux-upgrade-glibc-langpack-mt
  • oracle-linux-upgrade-glibc-langpack-my
  • oracle-linux-upgrade-glibc-langpack-nan
  • oracle-linux-upgrade-glibc-langpack-nb
  • oracle-linux-upgrade-glibc-langpack-nds
  • oracle-linux-upgrade-glibc-langpack-ne
  • oracle-linux-upgrade-glibc-langpack-nhn
  • oracle-linux-upgrade-glibc-langpack-niu
  • oracle-linux-upgrade-glibc-langpack-nl
  • oracle-linux-upgrade-glibc-langpack-nn
  • oracle-linux-upgrade-glibc-langpack-nr
  • oracle-linux-upgrade-glibc-langpack-nso
  • oracle-linux-upgrade-glibc-langpack-oc
  • oracle-linux-upgrade-glibc-langpack-om
  • oracle-linux-upgrade-glibc-langpack-or
  • oracle-linux-upgrade-glibc-langpack-os
  • oracle-linux-upgrade-glibc-langpack-pa
  • oracle-linux-upgrade-glibc-langpack-pap
  • oracle-linux-upgrade-glibc-langpack-pl
  • oracle-linux-upgrade-glibc-langpack-ps
  • oracle-linux-upgrade-glibc-langpack-pt
  • oracle-linux-upgrade-glibc-langpack-quz
  • oracle-linux-upgrade-glibc-langpack-raj
  • oracle-linux-upgrade-glibc-langpack-ro
  • oracle-linux-upgrade-glibc-langpack-ru
  • oracle-linux-upgrade-glibc-langpack-rw
  • oracle-linux-upgrade-glibc-langpack-sa
  • oracle-linux-upgrade-glibc-langpack-sah
  • oracle-linux-upgrade-glibc-langpack-sat
  • oracle-linux-upgrade-glibc-langpack-sc
  • oracle-linux-upgrade-glibc-langpack-sd
  • oracle-linux-upgrade-glibc-langpack-se
  • oracle-linux-upgrade-glibc-langpack-sgs
  • oracle-linux-upgrade-glibc-langpack-shn
  • oracle-linux-upgrade-glibc-langpack-shs
  • oracle-linux-upgrade-glibc-langpack-si
  • oracle-linux-upgrade-glibc-langpack-sid
  • oracle-linux-upgrade-glibc-langpack-sk
  • oracle-linux-upgrade-glibc-langpack-sl
  • oracle-linux-upgrade-glibc-langpack-sm
  • oracle-linux-upgrade-glibc-langpack-so
  • oracle-linux-upgrade-glibc-langpack-sq
  • oracle-linux-upgrade-glibc-langpack-sr
  • oracle-linux-upgrade-glibc-langpack-ss
  • oracle-linux-upgrade-glibc-langpack-st
  • oracle-linux-upgrade-glibc-langpack-sv
  • oracle-linux-upgrade-glibc-langpack-sw
  • oracle-linux-upgrade-glibc-langpack-szl
  • oracle-linux-upgrade-glibc-langpack-ta
  • oracle-linux-upgrade-glibc-langpack-tcy
  • oracle-linux-upgrade-glibc-langpack-te
  • oracle-linux-upgrade-glibc-langpack-tg
  • oracle-linux-upgrade-glibc-langpack-th
  • oracle-linux-upgrade-glibc-langpack-the
  • oracle-linux-upgrade-glibc-langpack-ti
  • oracle-linux-upgrade-glibc-langpack-tig
  • oracle-linux-upgrade-glibc-langpack-tk
  • oracle-linux-upgrade-glibc-langpack-tl
  • oracle-linux-upgrade-glibc-langpack-tn
  • oracle-linux-upgrade-glibc-langpack-to
  • oracle-linux-upgrade-glibc-langpack-tpi
  • oracle-linux-upgrade-glibc-langpack-tr
  • oracle-linux-upgrade-glibc-langpack-ts
  • oracle-linux-upgrade-glibc-langpack-tt
  • oracle-linux-upgrade-glibc-langpack-ug
  • oracle-linux-upgrade-glibc-langpack-uk
  • oracle-linux-upgrade-glibc-langpack-unm
  • oracle-linux-upgrade-glibc-langpack-ur
  • oracle-linux-upgrade-glibc-langpack-uz
  • oracle-linux-upgrade-glibc-langpack-ve
  • oracle-linux-upgrade-glibc-langpack-vi
  • oracle-linux-upgrade-glibc-langpack-wa
  • oracle-linux-upgrade-glibc-langpack-wae
  • oracle-linux-upgrade-glibc-langpack-wal
  • oracle-linux-upgrade-glibc-langpack-wo
  • oracle-linux-upgrade-glibc-langpack-xh
  • oracle-linux-upgrade-glibc-langpack-yi
  • oracle-linux-upgrade-glibc-langpack-yo
  • oracle-linux-upgrade-glibc-langpack-yue
  • oracle-linux-upgrade-glibc-langpack-yuw
  • oracle-linux-upgrade-glibc-langpack-zh
  • oracle-linux-upgrade-glibc-langpack-zu
  • oracle-linux-upgrade-glibc-locale-source
  • oracle-linux-upgrade-glibc-minimal-langpack
  • oracle-linux-upgrade-glibc-nss-devel
  • oracle-linux-upgrade-glibc-static
  • oracle-linux-upgrade-glibc-utils
  • oracle-linux-upgrade-libnsl
  • oracle-linux-upgrade-nscd
  • oracle-linux-upgrade-nss-db
  • oracle-linux-upgrade-nss-hesiod

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;