From: "Léo Le Bouter via Bug reports for GNU Guix" <bug-guix@gnu.org>
To: 47422@debbugs.gnu.org
Subject: bug#47422: tar is vulnerable to CVE-2021-20193
Date: Fri, 26 Mar 2021 22:30:57 +0100 [thread overview]
Message-ID: <520e2097011aae1bfd9c20278e27e25813517b42.camel@zaclys.net> (raw)
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CVE-2021-20193 18:15
A flaw was found in the src/list.c of tar 1.33 and earlier. This flaw
allows an attacker who can submit a crafted input file to tar to cause
uncontrolled consumption of memory. The highest threat from this
vulnerability is to system availability.
Patch available here:
https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777
Unreleased for now.
We can probably apply it in core-updates now, we should fix it in
master also, since grafts don't apply to GNU Guix builds is that OK?
GNU Guix packages don't unpack arbitrary tarballs since we hardcode
hashes for verification, but still.
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next reply other threads:[~2021-03-26 21:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-26 21:30 Léo Le Bouter via Bug reports for GNU Guix [this message]
2021-03-26 22:40 ` bug#47422: tar is vulnerable to CVE-2021-20193 Maxime Devos
2021-11-05 5:14 ` phodina via Bug reports for GNU Guix
2021-11-05 16:23 ` Leo Famulari
2021-11-05 16:50 ` Maxime Devos
2021-11-05 20:15 ` Mark H Weaver
2021-11-06 18:12 ` Mark H Weaver
2021-11-12 7:54 ` Mark H Weaver
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