Libmobi
CVE-2018-11726
HIGH
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. |
| Exploit ScenarioDerived | A remote attacker could write data beyond allocated buffer boundaries leading to code execution or crashes by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
The mobi_decode_font_resource function in util.c in Libmobi 0.3 allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a. Rated high severity (CVSS 8.8), 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 write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. The mobi_decode_font_resource function in util.c in Libmobi 0.3 allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact 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
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
The mobi_decode_font_resource function in util.c in Libmobi 0.3 allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted mobi file.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
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.
Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)NVD
libmobi is vulnerable to Out-of-bounds Read. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploita
libmobi is vulnerable to Out-of-bounds Write. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploit
The mobi_decompress_lz77 function in compression.c in Libmobi 0.3 allows remote attackers to cause remote code execution
Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11. Rated high severity (CVSS 8.1), this vulnerabi
Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11. Rated high severity (CVSS 8.1), this vulnerabi
Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11. Rated high severity (CVSS 8.1), this vulnerabi
libmobi is vulnerable to Use of Out-of-range Pointer Offset. Rated high severity (CVSS 8.1), this vulnerability is remot
libmobi is vulnerable to Use of Out-of-range Pointer Offset. Rated high severity (CVSS 8.1), this vulnerability is remot
Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11. Rated high severity (CVSS 7.8), this vulnerabi
Buffer Over-read at parse_rawml.c:1416 in GitHub repository bfabiszewski/libmobi prior to 0.11. Rated high severity (CVS
The mobi_reconstruct_parts function in parse_rawml.c in Libmobi 0.3 allows remote attackers to cause information disclos
The buffer_addraw function in buffer.c in Libmobi 0.3 allows remote attackers to cause information disclosure (heap-base
GitHub PoC
Exploit-DB