VDB-118367 · CVE-2018-11432 · GCVE-0-2018-11432

Libmobi 0.3 Mobi File read.c mobi_parse_mobiheader memory corruption

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.
6.9	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Libmobi 0.3. The impacted element is the function mobi_parse_mobiheader of the file read.c of the component Mobi File Handler. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2018-11432. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Libmobi 0.3. It has been rated as critical. This issue affects the function mobi_parse_mobiheader of the file read.c of the component Mobi File Handler. The manipulation with an unknown input 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:

The mobi_parse_mobiheader function in read.c in Libmobi 0.3 allows remote attackers to cause information disclosure (heap-based buffer over-read) via a crafted mobi file.

The bug was discovered 05/28/2018. The weakness was disclosed 05/30/2018 as not defined mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. The identification of this vulnerability is CVE-2018-11432 since 05/24/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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 2 days. During that time the estimated underground price was around $0-$5k.

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

The entries VDB-118368, VDB-118369, VDB-118370 and VDB-118371 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Libmobi

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/24/2018 🔍
05/28/2018 +4 days 🔍
05/30/2018 +1 days 🔍
05/30/2018 +0 days 🔍
05/30/2018 +0 days 🔍
02/09/2020 +620 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Not defined

CVE: CVE-2018-11432 (🔍)
GCVE (CVE): GCVE-0-2018-11432
GCVE (VulDB): GCVE-100-118367
See also: 🔍

Entryinfo

Created: 05/30/2018 21:52
Updated: 02/09/2020 21:25
Changes: 05/30/2018 21:52 (59), 02/09/2020 21:25 (1)
Complete: 🔍
Cache ID: 216::103