REDHAT-BUG-1563395: Buffer Overflow
First published: Tue Apr 03 2018(Updated: )
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function. A local attacker could exploit this to execute arbitrary code in the context of another user.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SUSE Zsh | <=5.4.2 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1563396
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1563394
- https://sourceforge.net/p/zsh/code/ci/31f72205630687c1cef89347863aab355296a27f/
- https://access.redhat.com/errata/RHSA-2018:1932
- https://access.redhat.com/errata/RHSA-2018:3073
- https://bugzilla.redhat.com/show_bug.cgi?id=1563395
Frequently Asked Questions
What is the severity of REDHAT-BUG-1563395?
REDHAT-BUG-1563395 is classified as a critical vulnerability due to its potential for arbitrary code execution.
How do I fix REDHAT-BUG-1563395?
To fix REDHAT-BUG-1563395, you should update Zsh to version 5.4.3 or later.
Who is affected by REDHAT-BUG-1563395?
Users of Zsh versions up to and including 5.4.2 are affected by REDHAT-BUG-1563395.
What type of vulnerability is REDHAT-BUG-1563395?
REDHAT-BUG-1563395 is a stack-based buffer overflow vulnerability.
Can REDHAT-BUG-1563395 be exploited remotely?
No, REDHAT-BUG-1563395 requires local access to exploit the vulnerability.
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