Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 603
Alerts This Week
Warning Icon 1 603

RHEL: RHSA-2015:0700-01 moderate: Unzip Buffer Overflow

red hat
Calendar Grey March 18, 2015
Dist Redhat Esm H88
A significant security patch for the unzip utility resolves various vulnerabilities in Red Hat Enterprise Linux versions 6 and 7.
Updated unzip packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6 and 7

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Summary

The unzip utility is used to list, test, or extract files from a zip archive.
A buffer overflow was found in the way unzip uncompressed certain extra fields of a file. A specially crafted Zip archive could cause unzip to crash or, possibly, execute arbitrary code when the archive was tested with unzip's '-t' option. (CVE-2014-9636)
A buffer overflow flaw was found in the way unzip computed the CRC32 checksum of certain extra fields of a file. A specially crafted Zip archive could cause unzip to crash when the archive was tested with unzip's '-t' option. (CVE-2014-8139)
An integer underflow flaw, leading to a buffer overflow, was found in the way unzip uncompressed certain extra fields of a file. A specially crafted Zip archive could cause unzip to crash when the archive was tested with unzip's '-t' option. (CVE-2014-8140)
A buffer overflow flaw was found in the way unzip handled Zip64 files. A specially crafted Zip archive could possibly cause unzip to crash when the archive was uncompressed. (CVE-2014-8141)
Red Hat would like to thank oCERT for reporting the CVE-2014-8139, CVE-2014-8140, and CVE-2014-8141 issues. oCERT acknowledges Michele Spagnuolo of the Google Security Team as the original reporter of these issues.
All unzip users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Topics%20covered

Topics Covered

security advisory security update buffer overflow moderate severity patch RHEL unzip issue

References

https://access.redhat.com/security/cve/CVE-2014-8139 https://access.redhat.com/security/cve/CVE-2014-8140 https://access.redhat.com/security/cve/CVE-2014-8141 https://access.redhat.com/security/cve/CVE-2014-9636 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: unzip-6.0-2.el6_6.src.rpm
i386: unzip-6.0-2.el6_6.i686.rpm unzip-debuginfo-6.0-2.el6_6.i686.rpm
x86_64: unzip-6.0-2.el6_6.x86_64.rpm unzip-debuginfo-6.0-2.el6_6.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: unzip-6.0-2.el6_6.src.rpm
x86_64: unzip-6.0-2.el6_6.x86_64.rpm unzip-debuginfo-6.0-2.el6_6.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: unzip-6.0-2.el6_6.src.rpm
i386: unzip-6.0-2.el6_6.i686.rpm unzip-debuginfo-6.0-2.el6_6.i686.rpm
ppc64: unzip-6.0-2.el6_6.ppc64.rpm unzip-debuginfo-6.0-2.el6_6.ppc64.rpm
s390x: unzip-6.0-2.el6_6.s390x.rpm unzip-debuginfo-6.0-2.el6_6.s390x.rpm
x86_64: unzip-6.0-2.el6_6.x86_64.rpm unzip-debuginfo-6.0-2.el6_6.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source: unzip-6.0-2.el6_6.src.rpm
i386: unzip-6.0-2.el6_6.i686.rpm unzip-debuginfo-6.0-2.el6_6.i686.rpm
x86_64: unzip-6.0-2.el6_6.x86_64.rpm unzip-debuginfo-6.0-2.el6_6.x86_64.rpm
Red Hat Enterprise Linux Client (v. 7):
Source: unzip-6.0-15.el7.src.rpm
x86_64: unzip-6.0-15.el7.x86_64.rpm unzip-debuginfo-6.0-15.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: unzip-6.0-15.el7.src.rpm
x86_64: unzip-6.0-15.el7.x86_64.rpm unzip-debuginfo-6.0-15.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):


Read the Full Advisory


Advisory ID: RHSA-2015:0700-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2015:0700.html
Issue date: 2015-03-18

Topic

Updated unzip packages that fix multiple security issues are now availablefor Red Hat Enterprise Linux 6 and 7.Red Hat Product Security has rated this update as having Moderate securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.

Topics%20covered

Topics Covered

security advisory security update buffer overflow moderate severity patch RHEL unzip issue

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Bugs Fixed

1174844 - CVE-2014-8139 unzip: CRC32 verification heap-based buffer overread (oCERT-2014-011)

1174851 - CVE-2014-8140 unzip: out-of-bounds write issue in test_compr_eb() (oCERT-2014-011)

1174856 - CVE-2014-8141 unzip: getZip64Data() out-of-bounds read issues (oCERT-2014-011)

1184985 - CVE-2014-9636 unzip: out-of-bounds read/write in test_compr_eb() in extract.c

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.