An issue was discovered in Exempi through 2.4.4. XMPFiles/source/FileHandlers/TIFF_Handler.cpp mishandles a case of a zero length, leading to a heap-based buffer over-read in the MD5Update() function in third-party/zuid/interfaces/MD5.cpp.

According to the version of the exempi package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - An issue was discovered in Exempi through 2.4.4.
    XMPFiles/source/FileHandlers/TIFF_Handler.cpp     mishandles a case of a zero length, leading to a     heap-based buffer over-read in the MD5Update() function     in third-party/zuid/interfaces/MD5.cpp.(CVE-2018-7728)

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.

Update to latest upstream release 0.3.15 (#1885156)

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

Version **2.4.5** fixes the following security issues :

  - **CVE-2018-7728**

  - **CVE-2018-7729**

  - **CVE-2018-7730**

  - **CVE-2018-7731**

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

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.

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.

Version **2.4.5** fixes the following security issues :

  - **CVE-2018-7728**

  - **CVE-2018-7729**

  - **CVE-2018-7730**

  - **CVE-2018-7731**

Version **2.4.4** fixes the following security issues :

  - **CVE-2017-18233**

  - **CVE-2017-18236**

Version **2.4.3** fixes the following security issues :

  - **CVE-2017-18234**

  - **CVE-2017-18235**

  - **CVE-2017-18237**

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

Various issues were discovered in exempi, a library to parse XMP metadata that may cause a denial of service or may have other unspecified impact via crafted files.

CVE-2017-18233 An Integer overflow in the Chunk class in RIFF.cpp allows remote attackers to cause a denial of service (infinite loop) via crafted XMP data in an .avi file.

CVE-2017-18234 An issue was discovered that 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.

CVE-2017-18236 The ASF_Support::ReadHeaderObject function in ASF_Support.cpp allows remote attackers to cause a denial of service (infinite loop) via a crafted .asf file.

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

CVE-2018-7728 TIFF_Handler.cpp mishandles a case of a zero length, leading to a heap-based buffer over-read in the MD5Update() function in MD5.cpp.

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

For Debian 7 'Wheezy', these problems have been fixed in version 2.2.0-1+deb7u1.

We recommend that you upgrade your exempi 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.

This update for exempi fixes the following issues :

  - CVE-2018-7728: Specially crafted TIFF images could have     been used to cause a denial of service via a heap-based     buffer overflow (boo#1085297) 

  - CVE-2018-7730: Specially crafted Excel files could have     been used cause a denial of service via a heap-based     buffer overflow (boo#1085295)

ID	Name	Product	Family	Severity
149144	EulerOS 2.0 SP3 : exempi (EulerOS-SA-2021-1781)	Nessus	Huawei Local Security Checks	medium
141906	Fedora 33 : python-msldap (2020-e22e9a655d)	Nessus	Fedora Local Security Checks	medium
120271	Fedora 28 : exempi (2018-1c9f6768cf)	Nessus	Fedora Local Security Checks	medium
118390	SUSE SLED12 / SLES12 Security Update : exempi (SUSE-SU-2018:3389-1)	Nessus	SuSE Local Security Checks	high
110321	Ubuntu 14.04 LTS / 16.04 LTS : Exempi vulnerabilities (USN-3668-1)	Nessus	Ubuntu Local Security Checks	high
108839	Fedora 27 : exempi (2018-c442aad4dc)	Nessus	Fedora Local Security Checks	high
108522	Debian DLA-1310-1 : exempi security update	Nessus	Debian Local Security Checks	high
108446	openSUSE Security Update : exempi (openSUSE-2018-282)	Nessus	SuSE Local Security Checks	medium

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CVE-2018-7728

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