Accepted git 1:2.20.1-2+deb10u3 (source) into proposed-updates->stable-new, proposed-updates
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Sun, 19 Apr 2020 17:19:12 -0700
Source: git
Architecture: source
Version: 1:2.20.1-2+deb10u3
Distribution: buster-security
Urgency: high
Maintainer: Gerrit Pape <pape@smarden.org>
Changed-By: Jonathan Nieder <jrnieder@gmail.com>
Changes:
git (1:2.20.1-2+deb10u3) buster-security; urgency=high
.
* new upstream point release (see RelNotes/2.20.4.txt).
* Addresses the security issue CVE-2020-11008.
.
With a crafted URL that contains a newline or empty host, or
lacks a scheme, the credential helper machinery can be fooled
into providing credential information that is not appropriate
for the protocol in use and host being contacted.
.
Unlike the vulnerability fixed in 1:2.20.1-2+deb10u2, the
credentials are not for a host of the attacker's choosing.
Instead, they are for an unspecified host, based on how the
configured credential helper handles an absent "host"
parameter.
.
The attack has been made impossible by refusing to work with
underspecified credential patterns.
.
Thanks to Carlo Arenas for reporting that Git was still
vulnerable, Felix Wilhelm for providing the proof of concept
demonstrating this issue, and Jeff King for promptly providing
a corrected fix.
.
Tested using the proof of concept at
https://crbug.com/project-zero/2021.
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