Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled

                							

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Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled

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From: "Todd C. Miller" &lt;Todd.Miller () sudo ws&gt;

Date: Wed, 05 Feb 2020 11:22:45 -0700

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On Wed, 05 Feb 2020 22:34:53 +1100, William Bowling wrote:

When using a pty, sudo_term_eof and sudo_term_kill are initialized to 0x4
and 0x15 allowing the overflow to be reached, making 1.8.26-1.8.30 also
vulnerable:

Thanks for sharing the pty exploitation method.  I've updated the
details in https://www.sudo.ws/alerts/pwfeedback.html to make it
clear that the bug is not specific to piped input.

 - todd

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Current thread:

CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled Todd C. Miller (Jan 30)

&lt;Possible follow-ups&gt;
Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled Todd C. Miller (Jan 31)

Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled William Bowling (Feb 05)

Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled Todd C. Miller (Feb 05)

 

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