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)

Updated unzip packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

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.

unzip was updated to fix security issues.

The unzip command line tool is affected by heap-based buffer overflows within the CRC32 verification (CVE-2014-8139), the test_compr_eb() (CVE-2014-8140) and the getZip64Data() functions (CVE-2014-8141). The input errors may result in in arbitrary code execution.

More info can be found in the oCert announcement:
http://seclists.org/oss-sec/2014/q4/1127

The remote OracleVM system is missing necessary patches to address critical security updates :

  - Fix CVE-2014-9636 CVE-2014-8139 CVE-2014-8140     (CVE-2014-8141) Resolves: #1196132 #1196120 #1196124     #1196128

An update of the unzip package has been released.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
82832	Amazon Linux AMI : unzip (ALAS-2015-504)	Nessus	Amazon Linux Local Security Checks	2015/4/17	2020/2/6	high
81925	CentOS 6 / 7 : unzip (CESA-2015:0700)	Nessus	CentOS Local Security Checks	2015/3/19	2021/1/4	high
81252	openSUSE Security Update : unzip (openSUSE-2015-119)	Nessus	SuSE Local Security Checks	2015/2/10	2021/1/19	high
81968	OracleVM 3.3 : unzip (OVMSA-2015-0037)	Nessus	OracleVM Local Security Checks	2015/3/20	2021/1/4	high
134423	Photon OS 2.0: Unzip PHSA-2020-2.0-0213	Nessus	PhotonOS Local Security Checks	2020/3/11	2024/7/23	high

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