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Bug 681726 (CVE-2019-9924) - <app-shells/bash-4.4_beta2: BASH_CMD is writable in restricted bash shells
Summary: <app-shells/bash-4.4_beta2: BASH_CMD is writable in restricted bash shells
Status: RESOLVED OBSOLETE
Alias: CVE-2019-9924
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal major (vote)
Assignee: Gentoo Security
URL: https://bugzilla.redhat.com/show_bug....
Whiteboard: A2 [noglsa cve]
Keywords:
Depends on:
Blocks:
 
Reported: 2019-03-25 11:34 UTC by Agostino Sarubbo
Modified: 2020-06-04 03:22 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Agostino Sarubbo gentoo-dev 2019-03-25 11:34:24 UTC
From ${URL} :

rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the 
permissions of the shell.

Reference:
https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1803441

Upstream commit:
http://git.savannah.gnu.org/cgit/bash.git/commit/CHANGES?h=bash-4.4-testing&id=955543877583837c85470f7fb8a97b7aa8d45e6c


@maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.
Comment 1 Lars Wendler (Polynomial-C) gentoo-dev 2019-03-25 11:55:31 UTC
We already have app-shells/bash-4.4_p23-r1 stable. So no action required from base-system here.