VDB-128311 · CVE-2018-20364 · BID 106299

LibRaw 0.19.1 libraw_cxx.cpp LibRaw::copy_bayer null pointer dereference

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
5.3	$0-$5k	0.00

A vulnerability was found in LibRaw 0.19.1 (Image Processing Software). It has been declared as problematic. Affected by this vulnerability is the function LibRaw::copy_bayer of the file libraw_cxx.cpp. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

LibRaw::copy_bayer in libraw_cxx.cpp in LibRaw 0.19.1 has a NULL pointer dereference.

The bug was discovered 12/21/2018. The weakness was released 12/22/2018 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2018-20364 since 12/22/2018. 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 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 120569 (Fedora 29 : LibRaw (2018-801432b551)), 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 172005 (SUSE Enterprise Linux Security Update for libraw (SUSE-SU-2019:0127-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (120569). Entries connected to this vulnerability are available at 128275, 128310, 128312 and 131049.

Productinfo

Type

Image Processing Software

Name

LibRaw

Version

0.19.1

License

open-source

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

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

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
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Nessus ID: 120569
Nessus Name: Fedora 29 : LibRaw (2018-801432b551)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Timelineinfo

12/21/2018 🔍
12/22/2018 +1 days 🔍
12/22/2018 +0 days 🔍
12/22/2018 +0 days 🔍
12/22/2018 +0 days 🔍
12/23/2018 +1 days 🔍
12/29/2018 +6 days 🔍
01/03/2019 +5 days 🔍
06/20/2023 +1629 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-801432b551⛔
Status: Confirmed

CVE: CVE-2018-20364 (🔍)
SecurityFocus: 106299 - LibRAW 'libraw_cxx.cpp' Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 12/23/2018 12:44
Updated: 06/20/2023 17:49
Changes: 12/23/2018 12:44 (74), 04/23/2020 14:51 (5), 06/20/2023 17:34 (4), 06/20/2023 17:41 (1), 06/20/2023 17:49 (1)
Complete: 🔍