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bash: when effective UID is not equal to its real UID the saved UID is not dropped

🗓️ 18 May 2021 13:25:55Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 6 Views

Bash privilege escalation occurs when the effective UID differs from the real UID, with setuid and non-root ownership.

Related
Packages
Refs
ReporterTitlePublishedViews
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IBM Security Bulletins		Security Bulletin: Vulnerability in Bash (CVE-2019-18276) affects HMC
22 Nov 202106:16
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9 Jan 202420:27
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IBM Security Bulletins		Security Bulletin: Netcool Operations Insight v1.6.8 addresses multiple security vulnerabilities.
11 Apr 202311:47
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IBM Security Bulletins		Security Bulletin: Cloud Pak for Security uses packages that are vulnerable to several CVEs
19 Oct 202115:38
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IBM Security Bulletins		Security Bulletin: IBM QRadar SIEM Application Framework Base Image is vulnerable to using components with Known Vulnerabilities
3 Dec 202118:52
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0day.today		Bash 5.0 Patch 11 - SUID Priv Drop Exploit
29 Nov 201900:00
–zdt
BDU FSTEC		The vulnerability of the disable_priv_mode command in the GNU Bash shell, related to improper checking of deleted privileges, allows a perpetrator to gain access to confidential data, compromise its integrity, and cause service failures.
14 Apr 202000:00
–bdu_fstec
CBLMariner		CVE-2019-18276 affecting package bash 4.4.23-1
30 Nov 202019:30
–cbl_mariner
Tenable Nessus		CentOS 8 : bash (CESA-2021:1679)
19 May 202100:00
–nessus
Tenable Nessus		EulerOS 2.0 SP8 : bash (EulerOS-SA-2020-1140)
25 Feb 202000:00
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64bash4.4.19-14.el8bash-4.4.19-14.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lebash4.4.19-14.el8bash-4.4.19-14.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xbash4.4.19-14.el8bash-4.4.19-14.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64bash4.4.19-14.el8bash-4.4.19-14.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64bash-debuginfo4.4.19-14.el8bash-debuginfo-4.4.19-14.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lebash-debuginfo4.4.19-14.el8bash-debuginfo-4.4.19-14.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xbash-debuginfo4.4.19-14.el8bash-debuginfo-4.4.19-14.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64bash-debuginfo4.4.19-14.el8bash-debuginfo-4.4.19-14.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64bash-debugsource4.4.19-14.el8bash-debugsource-4.4.19-14.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lebash-debugsource4.4.19-14.el8bash-debugsource-4.4.19-14.el8.ppc64le.rpm
Rows per page

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21 Nov 2025 18:22Current
7High risk
Vulners AI Score7
CVSS 27.2
CVSS 3.17.8
EPSS0.02608
SSVC
CWE-271
bashprivilege escalationeffective uidreal uidsetuidnon-root ownership
6