GLSA 202105-34: Bash: Privilege escalation
| Severity: | normal |
| Title: | Bash: Privilege escalation |
| Date: | 05/26/2021 |
| Bugs: | |
| ID: | 202105-34 |
Synopsis
A vulnerability in Bash may allow users to escalate privileges.Background
Bash is the standard GNU Bourne Again SHell.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| app-shells/bash | < 5.0_p11-r1 | >= 5.0_p11-r1 | All supported architectures |
Description
It was discovered that Bash incorrectly dropped privileges by setting its effective UID to its real UID.
Impact
A local attacker could possibly escalate privileges.
Workaround
There is no known workaround at this time.
Resolution
All Bash users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-shells/bash-5.0_p11-r1"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.