Your message dated Sun, 02 Feb 2020 13:47:57 +0000
with message-id <[email protected]>
and subject line Bug#950371: fixed in sudo 1.8.19p1-2.1+deb9u2
has caused the Debian Bug report #950371,
regarding sudo: CVE-2019-18634
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
950371: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=950371
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Source: sudo
Version: 1.8.29-1
Severity: important
Tags: security upstream
Control: found -1 1.8.27-1+deb10u1
Control: found -1 1.8.27-1
Control: found -1 1.8.19p1-2.1+deb9u1
Control: found -1 1.8.19p1-2.1
Hi,
The following vulnerability was published for sudo.
CVE-2019-18634[0]:
| In Sudo before 1.8.31, if pwfeedback is enabled in /etc/sudoers, users
| can trigger a stack-based buffer overflow in the privileged sudo
| process. (pwfeedback is a default setting in Linux Mint and elementary
| OS; however, it is NOT the default for upstream and many other
| packages, and would exist only if enabled by an administrator.) The
| attacker needs to deliver a long string to the stdin of getln() in
| tgetpass.c.
Note that a change in 1.8.26 itself[4] made the bug unexploitable
starting from that version, but the issue itself is fixed upstream in
1.8.31. Could you please close this bug once sudo is rebased in
unstable to 1.8.31 or the bugfix still cherry-picked?
If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.
For further information see:
[0] https://security-tracker.debian.org/tracker/CVE-2019-18634
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18634
[1] https://www.sudo.ws/alerts/pwfeedback.html
[2] https://www.openwall.com/lists/oss-security/2020/01/30/6
[3]
https://github.com/sudo-project/sudo/commit/fa8ffeb17523494f0e8bb49a25e53635f4509078
[4] https://www.openwall.com/lists/oss-security/2020/01/31/1
Regards,
Salvatore
--- End Message ---
--- Begin Message ---
Source: sudo
Source-Version: 1.8.19p1-2.1+deb9u2
We believe that the bug you reported is fixed in the latest version of
sudo, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Salvatore Bonaccorso <[email protected]> (supplier of updated sudo package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Fri, 31 Jan 2020 22:10:55 +0100
Source: sudo
Architecture: source
Version: 1.8.19p1-2.1+deb9u2
Distribution: stretch-security
Urgency: high
Maintainer: Bdale Garbee <[email protected]>
Changed-By: Salvatore Bonaccorso <[email protected]>
Closes: 950371
Changes:
sudo (1.8.19p1-2.1+deb9u2) stretch-security; urgency=high
.
* Non-maintainer upload by the Security Team.
* Fix a buffer overflow when pwfeedback is enabled and input is a not a tty
(CVE-2019-18634) (Closes: #950371)
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