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Libmobi CVE-2018-11725

MEDIUM
Out-of-bounds Read (CWE-125)
2018-06-19 cve@mitre.org
Buffer Overflow Information Disclosure Libmobi Libmobi Project
6.5
CVSS 3.0 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-125
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, read limits
MITRE ATT&CK

1 technique across 1 tactic: Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required.
Exploit ScenarioDerived

A remote attacker could read data from memory outside the intended buffer boundaries by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 2.5% exploitation probability (EPSS)

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AnalysisAI

The mobi_parse_index_entry function in index.c in Libmobi 0.3 allows remote attackers to cause an information disclosure (heap-based buffer over-read) via a crafted mobi file. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. The mobi_parse_index_entry function in index.c in Libmobi 0.3 allows remote attackers to cause an information disclosure (heap-based buffer over-read) via a crafted mobi file. Affected products include: Libmobi Project Libmobi.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

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

Threat Intelligence Overview

EPSS Score
2.5%
Top 17% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 2.5%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

35
Low Medium High Critical
KEV: 0
EPSS: +3
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:libmobi_project:libmobi:0.3:*:*:*:*:*:*:*

More in Libmobi

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CVE-2021-3751 CRITICAL POC
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libmobi is vulnerable to Out-of-bounds Write. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploit
CVE-2018-11438 HIGH POC
8.8 May 30

The mobi_decompress_lz77 function in compression.c in Libmobi 0.3 allows remote attackers to cause remote code execution
CVE-2022-1987 HIGH POC
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Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11. Rated high severity (CVSS 8.1), this vulnerabi
CVE-2022-1908 HIGH POC
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Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11. Rated high severity (CVSS 8.1), this vulnerabi
CVE-2022-1907 HIGH POC
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Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11. Rated high severity (CVSS 8.1), this vulnerabi
CVE-2021-3889 HIGH POC
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libmobi is vulnerable to Use of Out-of-range Pointer Offset. Rated high severity (CVSS 8.1), this vulnerability is remot
CVE-2022-1533 HIGH POC
7.8 Apr 29

Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11. Rated high severity (CVSS 7.8), this vulnerabi
CVE-2022-1534 HIGH POC
7.1 Apr 29

Buffer Over-read at parse_rawml.c:1416 in GitHub repository bfabiszewski/libmobi prior to 0.11. Rated high severity (CVS
CVE-2018-11437 MEDIUM POC
6.5 May 30

The mobi_reconstruct_parts function in parse_rawml.c in Libmobi 0.3 allows remote attackers to cause information disclos
CVE-2018-11436 MEDIUM POC
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The buffer_addraw function in buffer.c in Libmobi 0.3 allows remote attackers to cause information disclosure (heap-base

Same weakness CWE-125 – Out-of-bounds Read

View all
CVE-2014-0160 HIGH POC
7.5
CVE-2016-5198 HIGH POC
8.8
CVE-2025-5777 CRITICAL POC
9.3
CVE-2016-1646 HIGH POC
8.8
CVE-2017-5030 HIGH POC
8.8
CVE-2016-4523 HIGH
7.5
CVE-2024-48456 HIGH POC
7.5
CVE-2024-48457 HIGH POC
7.5

Same technique Buffer Overflow

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CVE-2017-7269 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2020-0796 CRITICAL POC
10.0
CVE-2019-11043 CRITICAL POC
9.8
CVE-2009-0927 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8

References

Advisories & patches
REF http://packetstormsecurity.com/files/148114/libmobi-0.3-Information-Disclosure.html REF http://seclists.org/fulldisclosure/2018/Jun/16

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