Exiv2 0.26 PSD Image Reader psdimage.cpp readMetadata integer overflow

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

Summaryinfo

A vulnerability categorized as critical has been discovered in Exiv2 0.26. This affects the function Exiv2::PsdImage::readMetadata of the file psdimage.cpp of the component PSD Image Reader. Executing a manipulation can lead to integer overflow. This vulnerability appears as CVE-2018-19108. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in Exiv2 0.26 (Image Processing Software). This vulnerability affects the function Exiv2::PsdImage::readMetadata of the file psdimage.cpp of the component PSD Image Reader. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In Exiv2 0.26, Exiv2::PsdImage::readMetadata in psdimage.cpp in the PSD image reader may suffer from a denial of service (infinite loop) caused by an integer overflow via a crafted PSD image file.

The bug was discovered 08/31/2018. The weakness was presented 11/08/2018 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2018-19108 since 11/08/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 69 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176682 (Debian Security Update for exiv2 (DLA 1691-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-126567, VDB-127103 and VDB-127916 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

08/31/2018 🔍
11/08/2018 +69 days 🔍
11/08/2018 +0 days 🔍
11/08/2018 +0 days 🔍
11/08/2018 +0 days 🔍
06/05/2023 +1670 days 🔍

Sourcesinfo

Product: github.com

Advisory: RHSA-2019:2101
Status: Confirmed

CVE: CVE-2018-19108 (🔍)
GCVE (CVE): GCVE-0-2018-19108
GCVE (VulDB): GCVE-100-126568
See also: 🔍

Entryinfo

Created: 11/08/2018 14:47
Updated: 06/05/2023 09:16
Changes: 11/08/2018 14:47 (61), 04/10/2020 20:30 (1), 06/05/2023 09:16 (4)
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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