Exiv2 0.26 pngchunk_int.cpp keyTXTChunk PNG File memory corruption

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

Summaryinfo

A vulnerability classified as critical has been found in Exiv2 0.26. This impacts the function Exiv2::Internal::PngChunk::keyTXTChunk of the file pngchunk_int.cpp. The manipulation as part of PNG File leads to memory corruption. This vulnerability is traded as CVE-2017-17669. An attack has to be approached locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Exiv2 0.26 (Image Processing Software) and classified as critical. This issue affects the function Exiv2::Internal::PngChunk::keyTXTChunk of the file pngchunk_int.cpp. The manipulation as part of a PNG File leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

There is a heap-based buffer over-read in the Exiv2::Internal::PngChunk::keyTXTChunk function of pngchunk_int.cpp in Exiv2 0.26. A crafted PNG file will lead to a remote denial of service attack.

The bug was discovered 12/10/2017. The weakness was shared 12/13/2017 (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2017-17669 since 12/13/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111620 (Fedora 27 : exiv2 (2018-871fa4d189)), 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 171722 (SUSE Enterprise Linux Security Update for exiv2 (SUSE-SU-2018:3882-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 9 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111620) and SecurityFocus (BID 100030†). The entries VDB-104439, VDB-104559, VDB-107246 and VDB-107249 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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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: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: 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: 111620
Nessus Name: Fedora 27 : exiv2 (2018-871fa4d189)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

07/27/2017 🔍
12/10/2017 +136 days 🔍
12/13/2017 +3 days 🔍
12/13/2017 +0 days 🔍
12/13/2017 +0 days 🔍
12/14/2017 +1 days 🔍
08/09/2018 +238 days 🔍
08/10/2018 +1 days 🔍
01/18/2023 +1622 days 🔍

Sourcesinfo

Product: github.com

Advisory: FEDORA-2018-871fa4d189
Researcher: owl337
Status: Confirmed

CVE: CVE-2017-17669 (🔍)
GCVE (CVE): GCVE-0-2017-17669
GCVE (VulDB): GCVE-100-110669
SecurityFocus: 100030 - Exiv2 'tiffvisitor.cpp' Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 12/14/2017 07:54
Updated: 01/18/2023 08:57
Changes: 12/14/2017 07:54 (68), 12/15/2019 08:41 (12), 01/27/2021 11:45 (2), 01/18/2023 08:51 (3), 01/18/2023 08:54 (1), 01/18/2023 08:57 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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