The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3668-1 advisory.

    It was discovered that Exempi incorrectly handled certain media files. If a user or automated system were     tricked into opening a specially crafted file, a remote attacker could cause Exempi to hang or crash,     resulting in a denial of service, or possibly execute arbitrary code.

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

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

This update for exempi fixes the following security issues :

CVE-2017-18233: Prevent integer overflow in the Chunk class that allowed remote attackers to cause a denial of service (infinite loop) via crafted XMP data in a .avi file (bsc#1085584).

CVE-2017-18238: The TradQT_Manager::ParseCachedBoxes function allowed remote attackers to cause a denial of service (infinite loop) via crafted XMP data in a .qt file (bsc#1085583).

CVE-2018-7728: Fixed heap-based buffer overflow, which allowed denial of service via crafted TIFF image (bsc#1085297).

CVE-2018-7730: Fixed heap-based buffer overflow in XMPFiles/source/FormatSupport/PSIR_FileWriter.cpp (bsc#1085295).

CVE-2017-18236: The ASF_Support::ReadHeaderObject function allowed remote attackers to cause a denial of service (infinite loop) via a crafted .asf file (bsc#1085589).

CVE-2017-18234: Prevent use-after-free that allowed remote attackers to cause a denial of service or possibly have unspecified other impact via a .pdf file containing JPEG data (bsc#1085585).

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.

An update for exempi 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.

Exempi provides a library for easy parsing of XMP metadata. It is a port of Adobe XMP SDK to work on UNIX and to be build with GNU automake. It includes XMPCore and XMPFiles.

Security Fix(es) :

* exempi: Infinite Loop in Chunk class in XMPFiles/source/FormatSupport/ RIFF.cpp (CVE-2017-18233)

* exempi: Use after free via a PDF file containing JPEG data (CVE-2017-18234)

* exempi: Infinite loop in ASF_Support::ReadHeaderObject function in XMPFiles /source/FormatSupport/ASF_Support.cpp (CVE-2017-18236)

* exempi: Infinite loop in TradQT_Manager::ParseCachedBoxes function in XMPFiles/source/FormatSupport/QuickTime_Support.cpp (CVE-2017-18238)

* exempi: Heap-based buffer overflow in PSD_MetaHandler::CacheFileData function in XMPFiles/source/FormatSupport/PSIR_FileWriter.cpp allows for denial of service via crafted XLS file (CVE-2018-7730)

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.

An issue was discovered in Exempi before 2.4.4. Integer overflow in the Chunk class in XMPFiles/source/FormatSupport/RIFF.cpp allows remote attackers to cause a denial of service (infinite loop) via crafted XMP data in a .avi file.(CVE-2017-18233)

An issue was discovered in Exempi before 2.4.3. It allows remote attackers to cause a denial of service (invalid memcpy with resultant use-after-free) or possibly have unspecified other impact via a .pdf file containing JPEG data, related to XMPFiles/source/FormatSupport/ReconcileTIFF.cpp, XMPFiles/source/FormatSupport/TIFF_MemoryReader.cpp, and XMPFiles/source/FormatSupport/TIFF_Support.hpp.(CVE-2017-18234)

An issue was discovered in Exempi before 2.4.4. The ASF_Support::ReadHeaderObject function in XMPFiles/source/FormatSupport/ASF_Support.cpp allows remote attackers to cause a denial of service (infinite loop) via a crafted .asf file.(CVE-2017-18236)

An infinite loop has been discovered in Exempi in the way it handles Extensible Metadata Platform (XMP) data in QuickTime files. An attacker could cause a denial of service via a crafted file.(CVE-2017-18238)

An integer wraparound, leading to a buffer overflow, was found in Exempi in the way it handles Adobe Photoshop Images. An attacker could exploit this to cause a denial of service via a crafted image file.(CVE-2018-7730)

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 Exempi through 2.4.4. A certain case of a 0xffffffff length is mishandled in     XMPFiles/source/FormatSupport/PSIR_FileWriter.cpp, leading to a heap-based buffer over-read in the     PSD_MetaHandler::CacheFileData() function. (CVE-2018-7730)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
110321	Ubuntu 14.04 LTS / 16.04 LTS : Exempi vulnerabilities (USN-3668-1)	Nessus	Ubuntu Local Security Checks	2018/6/5	2024/8/27	high
118390	SUSE SLED12 / SLES12 Security Update : exempi (SUSE-SU-2018:3389-1)	Nessus	SuSE Local Security Checks	2018/10/25	2024/7/29	high
128339	CentOS 7 : exempi (CESA-2019:2048)	Nessus	CentOS Local Security Checks	2019/8/30	2024/4/30	high
130218	Amazon Linux 2 : exempi (ALAS-2019-1321)	Nessus	Amazon Linux Local Security Checks	2019/10/25	2024/4/17	high
221929	Linux Distros Unpatched Vulnerability : CVE-2018-7730	Nessus	Misc.	2025/3/4	2025/9/4	medium

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