bugtraq - [SECURITY] [DSA 3501-1] perl security update

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <E1aamDF-0004Wo-TE@master.debian.org>
Date: Tue, 01 Mar 2016 15:27:49 +0000
From: Salvatore Bonaccorso <carnil@...ian.org>
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 3501-1] perl security update

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-3501-1                   security@...ian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
March 01, 2016                        https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : perl
CVE ID         : CVE-2016-2381

Stephane Chazelas discovered a bug in the environment handling in Perl.
Perl provides a Perl-space hash variable, %ENV, in which environment
variables can be looked up.  If a variable appears twice in envp, only
the last value would appear in %ENV, but getenv would return the first.
Perl's taint security mechanism would be applied to the value in %ENV,
but not to the other rest of the environment.  This could result in an
ambiguous environment causing environment variables to be propagated to
subprocesses, despite the protections supposedly offered by taint
checking.

With this update Perl changes the behavior to match the following:

 a) %ENV is populated with the first environment variable, as getenv
    would return.
 b) Duplicate environment entries are removed.

For the oldstable distribution (wheezy), this problem has been fixed
in version 5.14.2-21+deb7u3.

For the stable distribution (jessie), this problem has been fixed in
version 5.20.2-3+deb8u4.

For the unstable distribution (sid), this problem will be fixed in
version 5.22.1-8.

We recommend that you upgrade your perl packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@...ts.debian.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=WDZ9
-----END PGP SIGNATURE-----