libpng 1.6.36 png.c png_image_free use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in libpng 1.6.36 and classified as critical. This affects the function png_image_free of the file png.c. Such manipulation leads to use after free. This vulnerability is traded as CVE-2019-7317. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in libpng 1.6.36 (Image Processing Software). Affected by this issue is the function png_image_free of the file png.c. The manipulation with an unknown input 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:

png_image_free in png.c in libpng 1.6.36 has a use-after-free because png_image_free_function is called under png_safe_execute.

The bug was discovered 02/01/2019. The weakness was shared 02/04/2019 with Oracle as confirmed mailinglist post (Bugtraq). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2019-7317 since 02/04/2019. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for 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 3 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 237254 (Red Hat Update for firefox (RHSA-2019:1267)).

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

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 105599†). seclists.org is providing further details. The entries VDB-120936, VDB-125522 and VDB-138041 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.0
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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: 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: 🔍

Timelineinfo

10/16/2018 🔍
02/01/2019 +108 days 🔍
02/04/2019 +3 days 🔍
02/04/2019 +0 days 🔍
02/05/2019 +1 days 🔍
07/04/2023 +1610 days 🔍

Sourcesinfo

Advisory: RHSA-2019:1265
Organization: Oracle
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-7317 (🔍)
GCVE (CVE): GCVE-0-2019-7317
GCVE (VulDB): GCVE-100-130484
SecurityFocus: 105599 - Oracle Java SE/Java SE Embedded CVE-2018-13785 Remote Security Vulnerability

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 02/05/2019 11:27
Updated: 07/04/2023 19:58
Changes: 02/05/2019 11:27 (63), 06/04/2020 15:38 (5), 07/04/2023 19:58 (3)
Complete: 🔍
Cache ID: 216:57E:103

Once again VulDB remains the best source for vulnerability data.

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