An issue was discovered in ZZIPlib through 0.13.69. There is a memory leak triggered in the function __zzip_parse_root_directory in zip.c, which will lead to a denial of service attack.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An issue was discovered in ZZIPlib through 0.13.69. There is a memory leak triggered in the function
    __zzip_parse_root_directory in zip.c, which will lead to a denial of service attack. (CVE-2018-16548)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-2196 advisory.

    - Fix CVE-2018-6541
    - Part of the original patch has already been applied in the past (CVE-2018-7726),       so the bug should not be reproducible in a way described in the github       issue, even without this commit. Applying the rest of the original patch anyway.
    - Related: CVE-2018-6541
    - Fix CVE-2018-16548

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Several issues have been fixed in zziplib, a library providing read access on ZIP-archives. They are basically all related to invalid memory access and resulting crash or memory leak.

For Debian 8 'Jessie', these problems have been fixed in version 0.13.62-3+deb8u2.

We recommend that you upgrade your zziplib packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has zziplib packages installed that are affected by multiple vulnerabilities:

  - In ZZIPlib 0.13.67, there is a bus error caused by     loading of a misaligned address (when handling     disk64_trailer local entries) in
    __zzip_fetch_disk_trailer (zzip/zip.c). Remote attackers     could leverage this vulnerability to cause a denial of     service via a crafted zip file. (CVE-2018-6541)

  - An issue was discovered in ZZIPlib through 0.13.69.
    There is a memory leak triggered in the function
    __zzip_parse_root_directory in zip.c, which will lead to     a denial of service attack. (CVE-2018-16548)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

This update for zziplib fixes the following issues :

Security issues fixed :

CVE-2018-16548: Avoid a memory leak from __zzip_parse_root_directory() which could lead to denial of service. (bsc#1107424)

CVE-2018-7727: Fixed a memory leak in unzzip_cat() (bsc#1084515).

Non-security issue fixed: Prevented division by zero by first checking if uncompressed size is 0. This may happen with directories which have a compressed and uncompressed size of 0. (bsc#1129403)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the zziplib package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in ZZIPlib through 0.13.69.
    There is a memory leak triggered in the function
    __zzip_parse_root_directory in zip.c, which will lead     to a denial of service attack.(CVE-2018-16548)

  - Heap-based buffer overflow in the __zzip_get32 function     in fetch.c in zziplib 0.13.62 allows remote attackers     to cause a denial of service (crash) via a crafted ZIP     file.(CVE-2017-5974)

  - Heap-based buffer overflow in the __zzip_get64 function     in fetch.c in zziplib 0.13.62 allows remote attackers     to cause a denial of service (crash) via a crafted ZIP     file.(CVE-2017-5975)

  - Heap-based buffer overflow in the     zzip_mem_entry_extra_block function in memdisk.c in     zziplib 0.13.62 allows remote attackers to cause a     denial of service (crash) via a crafted ZIP     file.(CVE-2017-5976)

  - In ZZIPlib 0.13.67, there is a bus error caused by     loading of a misaligned address (when handling     disk64_trailer local entries) in
    __zzip_fetch_disk_trailer (zzip/zip.c). Remote     attackers could leverage this vulnerability to cause a     denial of service via a crafted zip     file.(CVE-2018-6541)

  - In ZZIPlib 0.13.67, there is a bus error caused by     loading of a misaligned address in the     zzip_disk_findfirst function of zzip/mmapped.c. Remote     attackers could leverage this vulnerability to cause a     denial of service via a crafted zip     file.(CVE-2018-6540)

  - In ZZIPlib 0.13.67, there is a memory alignment error     and bus error in the __zzip_fetch_disk_trailer function     of zzip/zip.c. Remote attackers could leverage this     vulnerability to cause a denial of service via a     crafted zip file.(CVE-2018-6484)

  - In ZZIPlib 0.13.67, there is a segmentation fault     caused by invalid memory access in the zzip_disk_fread     function (zzip/mmapped.c) because the size variable is     not validated against the amount of file->stored     data.(CVE-2018-6381)

  - In ZZIPlib 0.13.68, there is an uncontrolled memory     allocation and a crash in the
    __zzip_parse_root_directory function of zzip/zip.c.
    Remote attackers could leverage this vulnerability to     cause a denial of service via a crafted zip     file.(CVE-2018-6869)

  - seeko.c in zziplib 0.13.62 allows remote attackers to     cause a denial of service (assertion failure and crash)     via a crafted ZIP file.(CVE-2017-5981)

  - The prescan_entry function in fseeko.c in zziplib     0.13.62 allows remote attackers to cause a denial of     service (NULL pointer dereference and crash) via a     crafted ZIP file.(CVE-2017-5979)

  - The zzip_mem_entry_extra_block function in memdisk.c in     zziplib 0.13.62 allows remote attackers to cause a     denial of service (invalid memory read and crash) via a     crafted ZIP file.(CVE-2017-5977)

  - The zzip_mem_entry_new function in memdisk.c in zziplib     0.13.62 allows remote attackers to cause a denial of     service (out-of-bounds read and crash) via a crafted     ZIP file.(CVE-2017-5978)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the zziplib package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The zziplib is a lightweight library to easily extract     data from zip files.Security Fix(es):An issue was     discovered in ZZIPlib through 0.13.69. There is a     memory leak triggered in the function
    __zzip_parse_root_directory in zip.c, which will lead     to a denial of service attack.(CVE-2018-16548)In     ZZIPlib 0.13.67, there is a segmentation fault caused     by invalid memory access in the zzip_disk_fread     function (zzip/mmapped.c) because the size variable is     not validated against the amount of file->stored     data.(CVE-2018-6381)In ZZIPlib 0.13.67, there is a     memory alignment error and bus error in the
    __zzip_fetch_disk_trailer function of zzip/zip.c.
    Remote attackers could leverage this vulnerability to     cause a denial of service via a crafted zip     file.(CVE-2018-6484)In ZZIPlib 0.13.67, there is a bus     error caused by loading of a misaligned address in the     zzip_disk_findfirst function of zzip/mmapped.c. Remote     attackers could leverage this vulnerability to cause a     denial of service via a crafted zip     file.(CVE-2018-6540)In ZZIPlib 0.13.67, there is a bus     error caused by loading of a misaligned address (when     handling disk64_trailer local entries) in
    __zzip_fetch_disk_trailer (zzip/zip.c). Remote     attackers could leverage this vulnerability to cause a     denial of service via a crafted zip     file.(CVE-2018-6541)In ZZIPlib 0.13.68, there is an     uncontrolled memory allocation and a crash in the
    __zzip_parse_root_directory function of zzip/zip.c.
    Remote attackers could leverage this vulnerability to     cause a denial of service via a crafted zip     file.(CVE-2018-6869)The prescan_entry function in     fseeko.c in zziplib 0.13.62 allows remote attackers to     cause a denial of service (NULL pointer dereference and     crash) via a crafted ZIP file.(CVE-2017-5979)seeko.c in     zziplib 0.13.62 allows remote attackers to cause a     denial of service (assertion failure and crash) via a     crafted ZIP file.(CVE-2017-5981)The zzip_mem_entry_new     function in memdisk.c in zziplib 0.13.62 allows remote     attackers to cause a denial of service (out-of-bounds     read and crash) via a crafted ZIP     file.(CVE-2017-5978)Heap-based buffer overflow in the
    __zzip_get32 function in fetch.c in zziplib 0.13.62     allows remote attackers to cause a denial of service     (crash) via a crafted ZIP     file.(CVE-2017-5974)Heap-based buffer overflow in the     zzip_mem_entry_extra_block function in memdisk.c in     zziplib 0.13.62 allows remote attackers to cause a     denial of service (crash) via a crafted ZIP     file.(CVE-2017-5976)Heap-based buffer overflow in the
    __zzip_get64 function in fetch.c in zziplib 0.13.62     allows remote attackers to cause a denial of service     (crash) via a crafted ZIP file.(CVE-2017-5975)The     zzip_mem_entry_extra_block function in memdisk.c in     zziplib 0.13.62 allows remote attackers to cause a     denial of service (invalid memory read and crash) via a     crafted ZIP file.(CVE-2017-5977)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the zziplib package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Directory traversal vulnerability in ZZIPlib 0.13.69     allows attackers to overwrite arbitrary files via a ..
    (dot dot) in a zip file, because of the function     unzzip_cat in the bins/unzzipcat-mem.c     file.(CVE-2018-17828)

  - An issue was discovered in ZZIPlib through 0.13.69.
    There is a memory leak triggered in the function
    __zzip_parse_root_directory in zip.c, which will lead     to a denial of service attack.(CVE-2018-16548)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the zziplib package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in ZZIPlib 0.13.68. An invalid     memory address dereference was discovered in     zzip_disk_fread in mmapped.c. The vulnerability causes     an application crash, which leads to denial of     service.(CVE-2018-7725 )

  - An issue was discovered in ZZIPlib 0.13.68. There is a     bus error caused by the __zzip_parse_root_directory     function of zip.c. Attackers could leverage this     vulnerability to cause a denial of service via a     crafted zip file.(CVE-2018-7726)

  - An issue was discovered in ZZIPlib 0.13.68. There is a     memory leak triggered in the function zzip_mem_disk_new     in memdisk.c, which will lead to a denial of service     attack.(CVE-2018-7727)

  - In ZZIPlib 0.13.67, there is a bus error caused by     loading of a misaligned address (when handling     disk64_trailer local entries) in
    __zzip_fetch_disk_trailer (zzip/zip.c). Remote     attackers could leverage this vulnerability to cause a     denial of service via a crafted zip     file.(CVE-2018-6541)

  - An issue was discovered in ZZIPlib through 0.13.69.
    There is a memory leak triggered in the function
    __zzip_parse_root_directory in zip.c, which will lead     to a denial of service attack.(CVE-2018-16548)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An issue was discovered in ZZIPlib through 0.13.69. There is a memory leak triggered in the function __zzip_parse_root_directory in zip.c, which will lead to a denial of service attack.(CVE-2018-16548)

In ZZIPlib 0.13.67, there is a bus error caused by loading of a misaligned address (when handling disk64_trailer local entries) in
__zzip_fetch_disk_trailer (zzip/zip.c). Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.(CVE-2018-6541)

This update for zziplib fixes the following issues :

Security issue fixed :

  - CVE-2018-16548: Prevented memory leak from
    __zzip_parse_root_directory(). Free allocated structure     if its address is not passed back. (bsc#1107424)

Other issue addressed :

  - Prevented a division by zero (bsc#1129403). This update     was imported from the SUSE:SLE-15:Update update project.

This update for zziplib fixes the following issues :

Security issue fixed :

CVE-2018-16548: Prevented memory leak from
__zzip_parse_root_directory(). Free allocated structure if its address is not passed back. (bsc#1107424)

Other issue addressed: Prevented a division by zero (bsc#1129403).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has zziplib packages installed that are affected by multiple vulnerabilities:

  - In ZZIPlib 0.13.67, there is a bus error caused by     loading of a misaligned address (when handling     disk64_trailer local entries) in
    __zzip_fetch_disk_trailer (zzip/zip.c). Remote attackers     could leverage this vulnerability to cause a denial of     service via a crafted zip file. (CVE-2018-6541)

  - An issue was discovered in ZZIPlib through 0.13.69.
    There is a memory leak triggered in the function
    __zzip_parse_root_directory in zip.c, which will lead to     a denial of service attack. (CVE-2018-16548)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

An update for zziplib is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

The zziplib is a lightweight library to easily extract data from zip files.

Security Fix(es) :

* zziplib: Bus error caused by loading of a misaligned address inzzip/zip.c (CVE-2018-6541)

* zziplib: Memory leak triggered in the function
__zzip_parse_root_directory in zip.c (CVE-2018-16548)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

Security Fix(es) :

  - zziplib: Bus error caused by loading of a misaligned     address inzzip/zip.c (CVE-2018-6541)

  - zziplib: Memory leak triggered in the function
    __zzip_parse_root_directory in zip.c (CVE-2018-16548)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:2196 advisory.

    The zziplib is a lightweight library to easily extract data from zip files.

    Security Fix(es):

    * zziplib: Bus error caused by loading of a misaligned address inzzip/zip.c (CVE-2018-6541)

    * zziplib: Memory leak triggered in the function __zzip_parse_root_directory in zip.c (CVE-2018-16548)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
257975	Linux Distros Unpatched Vulnerability : CVE-2018-16548	Nessus	Misc.	medium
180801	Oracle Linux 7 : zziplib (ELSA-2019-2196)	Nessus	Oracle Linux Local Security Checks	medium
137861	Debian DLA-2258-1 : zziplib security update	Nessus	Debian Local Security Checks	medium
132458	NewStart CGSL CORE 5.05 / MAIN 5.05 : zziplib Multiple Vulnerabilities (NS-SA-2019-0226)	Nessus	NewStart CGSL Local Security Checks	medium
132335	SUSE SLED12 Security Update : zziplib (SUSE-SU-2019:3341-1)	Nessus	SuSE Local Security Checks	medium
132220	EulerOS 2.0 SP3 : zziplib (EulerOS-SA-2019-2685)	Nessus	Huawei Local Security Checks	medium
131631	EulerOS 2.0 SP2 : zziplib (EulerOS-SA-2019-2478)	Nessus	Huawei Local Security Checks	medium
130833	EulerOS 2.0 SP8 : zziplib (EulerOS-SA-2019-2124)	Nessus	Huawei Local Security Checks	medium
130698	EulerOS 2.0 SP5 : zziplib (EulerOS-SA-2019-2236)	Nessus	Huawei Local Security Checks	medium
130608	Amazon Linux 2 : zziplib (ALAS-2019-1357)	Nessus	Amazon Linux Local Security Checks	medium
130357	openSUSE Security Update : zziplib (openSUSE-2019-2396)	Nessus	SuSE Local Security Checks	medium
130355	openSUSE Security Update : zziplib (openSUSE-2019-2394)	Nessus	SuSE Local Security Checks	medium
130195	SUSE SLED15 / SLES15 Security Update : zziplib (SUSE-SU-2019:2750-1)	Nessus	SuSE Local Security Checks	medium
129933	NewStart CGSL CORE 5.04 / MAIN 5.04 : zziplib Multiple Vulnerabilities (NS-SA-2019-0184)	Nessus	NewStart CGSL Local Security Checks	medium
128374	CentOS 7 : zziplib (CESA-2019:2196)	Nessus	CentOS Local Security Checks	medium
128272	Scientific Linux Security Update : zziplib on SL7.x x86_64 (20190806)	Nessus	Scientific Linux Local Security Checks	medium
127695	RHEL 7 : zziplib (RHSA-2019:2196)	Nessus	Red Hat Local Security Checks	medium

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