Denial of service in Exempi



| Updated: 2018-04-11
Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2017-18238
CVE-2017-18237
CVE-2017-18233
CVE-2017-18234
CWE-ID CWE-835
CWE-476
CWE-119
CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Exempi
Client/Desktop applications / Multimedia software

Vendor Freedesktop.org

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Infinite loop

EUVDB-ID: #VU11629

Risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-18238

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the TradQT_Manager::ParseCachedBoxesfunction defined in the source code file XMPFiles/source/FormatSupport/QuickTime_Support.cpp due to infinite loop when handling Extensible Metadata Platform (XMP) data in .qt files. A remote attacker can trick the victim into accessing a specially crafted .qtfile, trigger memory corruption and cause the service to crash.

Mitigation

Update to version 2.4.4.

Vulnerable software versions

Exempi: 2.1.0 - 2.4.3

CPE2.3 External links

https://bugs.freedesktop.org/show_bug.cgi?id=102483


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) NULL pointer dereference

EUVDB-ID: #VU11630

Risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-18237

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the PostScript_Support::ConvertToDate function in the source code file XMPFiles/source/FormatSupport/PostScript_Support.cpp due to invalid pointer dereference when handling PostScript (.ps) files. A remote attacker can trick the victim into accessing a specially crafted .ps file and cause the service to crash.

Mitigation

Update to version 2.4.3.

Vulnerable software versions

Exempi: 2.1.0 - 2.4.2

CPE2.3 External links

https://cgit.freedesktop.org/exempi/tree/NEWS


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Memory corruption

EUVDB-ID: #VU11631

Risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-18233

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the Chunk class in the source code file XMPFiles/source/FormatSupport/RIFF.cpp due to integer overflow and infinite loop when handling Extensible Metadata Platform (XMP) data in .avifiles. A remote attacker can trick the victim into accessing a specially crafted .avi file, trigger memory corruption and cause the service to crash.

Mitigation

Update to version 2.4.4.

Vulnerable software versions

Exempi: 2.1.0 - 2.4.3

CPE2.3 External links

https://cgit.freedesktop.org/exempi/tree/NEWS


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Use-after-free error

EUVDB-ID: #VU11756

Risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-18234

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists due to improper processing of a file that contains JPEG data related to the XMPFiles/source/FormatSupport/ReconcileTIFF.cpp, XMPFiles/source/FormatSupport/TIFF_MemoryReader.cpp and XMPFiles/source/FormatSupport/TIFF_Support.hpp source code files. A remote attacker can trick the victim into accessing a file that contains customized JPEG data that submits malicious input, trigger use after free and cause the service to crash.

Mitigation

Update to version 2.4.3.

Vulnerable software versions

Exempi: 2.1.0 - 2.4.2

CPE2.3 External links

https://cgit.freedesktop.org/exempi/tree/NEWS


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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