Exempi up to 2.4.2 JPEG Data ReconcileTIFF.cpp PDF File use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Exempi up to 2.4.2. This vulnerability affects unknown code of the file XMPFiles/source/FormatSupport/ReconcileTIFF.cpp of the component JPEG Data Handler. Such manipulation as part of PDF File leads to use after free. This vulnerability is documented as CVE-2017-18234. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Exempi up to 2.4.2 and classified as critical. Affected by this issue is an unknown part of the file XMPFiles/source/FormatSupport/ReconcileTIFF.cpp of the component JPEG Data Handler. The manipulation as part of a PDF File leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 03/15/2017. The weakness was released 03/15/2018 (Website). The advisory is shared for download at bugs.freedesktop.org. This vulnerability is handled as CVE-2017-18234 since 03/15/2018. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 365 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 109509 (EulerOS 2.0 SP2 : exempi (EulerOS-SA-2018-1111)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Huawei 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 to version 2.4.3 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 (109509). Entries connected to this vulnerability are available at VDB-114149, VDB-114151, VDB-114655 and VDB-114658. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / 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: 109509
Nessus Name: EulerOS 2.0 SP2 : exempi (EulerOS-SA-2018-1111)
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: 🔍

Upgrade: Exempi 2.4.3
Patch: cgit.freedesktop.org

Timelineinfo

03/15/2017 🔍
03/15/2018 +365 days 🔍
03/15/2018 +0 days 🔍
03/15/2018 +0 days 🔍
03/16/2018 +1 days 🔍
04/20/2018 +35 days 🔍
05/02/2018 +12 days 🔍
02/22/2023 +1757 days 🔍

Sourcesinfo

Advisory: RHSA-2019:2048
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-18234 (🔍)
GCVE (CVE): GCVE-0-2017-18234
GCVE (VulDB): GCVE-100-114656
See also: 🔍

Entryinfo

Created: 03/16/2018 08:07
Updated: 02/22/2023 08:20
Changes: 03/16/2018 08:07 (76), 01/14/2020 08:58 (3), 02/22/2023 08:20 (5)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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