HTMLDOC up to 1.9.13 BMP File image_load_bmp stack-based overflow
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.7 | $0-$5k | 0.00 |
Summary
A vulnerability identified as critical has been detected in HTMLDOC up to 1.9.13. Affected by this vulnerability is the function image_load_bmp of the component BMP File Handler. Performing a manipulation results in stack-based overflow.
This vulnerability is cataloged as CVE-2021-43579. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.
It is suggested to install a patch to address this issue.
Details
A vulnerability, which was classified as critical, was found in HTMLDOC up to 1.9.13. This affects the function image_load_bmp of the component BMP File Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.
The weakness was shared 01/10/2022 as 453. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2021-43579 since 11/12/2021. Technical details and a public exploit are known.
The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 213544 (Ubuntu 14.04 LTS / 18.04 LTS / 20.04 LTS : HTMLDOC vulnerabilities (USN-7189-1)), which helps to determine the existence of the flaw in a target environment.
Applying the patch 27d08989a5a567155d506ac870ae7d8cc88fa58b is able to eliminate this problem. The bugfix is ready for download at github.com.
The vulnerability is also documented in the databases at Exploit-DB (52425) and Tenable (213544). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 5.7
VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Stack-based overflowCWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 213544
Nessus Name: Ubuntu 14.04 LTS / 18.04 LTS / 20.04 LTS : HTMLDOC vulnerabilities (USN-7189-1)
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: 27d08989a5a567155d506ac870ae7d8cc88fa58b
Timeline
11/12/2021 🔍01/10/2022 🔍
01/10/2022 🔍
09/17/2025 🔍
Sources
Advisory: 453Status: Confirmed
CVE: CVE-2021-43579 (🔍)
GCVE (CVE): GCVE-0-2021-43579
GCVE (VulDB): GCVE-100-189849
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 01/10/2022 17:12Updated: 09/17/2025 07:12
Changes: 01/10/2022 17:12 (41), 01/12/2022 08:42 (1), 01/08/2025 12:32 (16), 09/17/2025 07:12 (11)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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