Libmobi 0.3 Mobi File buffer.c buffer_addraw memory corruption

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.
6.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Libmobi 0.3. Affected by this vulnerability is the function buffer_addraw of the file buffer.c of the component Mobi File Handler. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2018-11436. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Libmobi 0.3. This affects the function buffer_addraw of the file buffer.c of the component Mobi File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The buffer_addraw function in buffer.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 released 05/30/2018 as not defined mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. This vulnerability is uniquely identified as CVE-2018-11436 since 05/24/2018. It is possible to initiate the attack remotely. No form of authentication is needed for 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.

Entries connected to this vulnerability are available at VDB-118367, VDB-118368, VDB-118369 and VDB-118370. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

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

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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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-2018-11436 (🔍)
GCVE (CVE): GCVE-0-2018-11436
GCVE (VulDB): GCVE-100-118371
See also: 🔍

Entryinfo

Created: 05/30/2018 21:52
Updated: 02/09/2020 21:51
Changes: 05/30/2018 21:52 (59), 02/09/2020 21:51 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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