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ESB-2015.2731.2 - UPDATE [UNIX/Linux][Debian] unzip: Multiple vulnerabilities

Date: 10 November 2015

Click here for printable version
Click here for PGP verifiable version
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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                              ESB-2015.2731.2
                           unzip security update
                             10 November 2015

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           unzip
Publisher:         Debian
Operating System:  Debian GNU/Linux 7
                   Debian GNU/Linux 8
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-7697 CVE-2015-7696 

Original Bulletin: 
   http://www.debian.org/security/2015/dsa-3386

Revision History:  November 10 2015: The update for unzip issued as DSA-3386-1
                                     introduced a regression
                   November  2 2015: Initial Release

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- - -------------------------------------------------------------------------
Debian Security Advisory DSA-3386-2                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
November 09, 2015                     https://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : unzip
Debian Bug     : 804595

The update for unzip issued as DSA-3386-1 introduced a regression when
extracting 0-byte files. Updated packages are now available to address
this regression.

For the oldstable distribution (wheezy), this problem has been fixed
in version 6.0-8+deb7u5.

For the stable distribution (jessie), this problem has been fixed in
version 6.0-16+deb8u2.

For the unstable distribution (sid), this problem has been fixed in
version 6.0-20.

We recommend that you upgrade your unzip 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@lists.debian.org
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- - -------------------------------------------------------------------------
Debian Security Advisory DSA-3386-1                   security@debian.org
https://www.debian.org/security/                 Laszlo Boszormenyi (GCS)
October 31, 2015                      https://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : unzip
CVE ID         : CVE-2015-7696 CVE-2015-7697
Debian Bug     : 802160 802162

Two vulnerabilities have been found in unzip, a de-archiver for .zip
files. The Common Vulnerabilities and Exposures project identifies the
following problems:

CVE-2015-7696

    Gustavo Grieco discovered that unzip incorrectly handled certain
    password protected archives. If a user or automated system were
    tricked into processing a specially crafted zip archive, an attacker
    could possibly execute arbitrary code.

CVE-2015-7697

    Gustavo Grieco discovered that unzip incorrectly handled certain
    malformed archives. If a user or automated system were tricked into
    processing a specially crafted zip archive, an attacker could
    possibly cause unzip to hang, resulting in a denial of service.

For the oldstable distribution (wheezy), these problems have been fixed
in version 6.0-8+deb7u4.

For the stable distribution (jessie), these problems have been fixed in
version 6.0-16+deb8u1.

For the testing distribution (stretch), these problems have been fixed
in version 6.0-19.

For the unstable distribution (sid), these problems have been fixed in
version 6.0-19.

We recommend that you upgrade your unzip 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@lists.debian.org
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
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                On call after hours for member emergencies only.
===========================================================================
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