Exempi up to 2.4.4 PSIR_FileWriter.cpp CacheFileData length out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Exempi up to 2.4.4. This issue affects the function PSD_MetaHandler::CacheFileData of the file XMPFiles/source/FormatSupport/PSIR_FileWriter.cpp. This manipulation of the argument length causes out-of-bounds. This vulnerability is handled as CVE-2018-7730. It is possible to launch the attack on the local host. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Exempi up to 2.4.4 and classified as critical. Affected by this vulnerability is the function PSD_MetaHandler::CacheFileData of the file XMPFiles/source/FormatSupport/PSIR_FileWriter.cpp. The manipulation of the argument length with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 02/26/2018. The weakness was released 03/06/2018 (Website). It is possible to read the advisory at bugs.freedesktop.org. This vulnerability is known as CVE-2018-7730 since 03/06/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 108839 (Fedora 27 : exempi (2018-c442aad4dc)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171678 (SUSE Enterprise Linux Security Update for exempi (SUSE-SU-2018:3389-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (108839). Entries connected to this vulnerability are available at VDB-114149, VDB-114150, VDB-114152 and VDB-114655. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 108839
Nessus Name: Fedora 27 : exempi (2018-c442aad4dc)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 52995
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 1310-1] exempi security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: cgit.freedesktop.org

Timelineinfo

02/26/2018 🔍
03/06/2018 +8 days 🔍
03/06/2018 +0 days 🔍
03/06/2018 +0 days 🔍
03/07/2018 +1 days 🔍
04/04/2018 +28 days 🔍
04/05/2018 +1 days 🔍
02/17/2023 +1779 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-c442aad4dc
Status: Confirmed

CVE: CVE-2018-7730 (🔍)
GCVE (CVE): GCVE-0-2018-7730
GCVE (VulDB): GCVE-100-114151
See also: 🔍

Entryinfo

Created: 03/07/2018 08:03
Updated: 02/17/2023 09:19
Changes: 03/07/2018 08:03 (73), 01/10/2020 22:01 (3), 02/17/2023 09:15 (5), 02/17/2023 09:19 (1)
Complete: 🔍
Cache ID: 216::103

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