CVE-2022-35050: n/a in n/a
OTFCC commit 617837b was discovered to contain a heap buffer overflow via /release-x64/otfccdump+0x6b04de.
AI Analysis
Technical Summary
CVE-2022-35050 is a medium-severity heap buffer overflow vulnerability identified in a specific commit (617837b) of the OTFCC project, specifically triggered via the binary path /release-x64/otfccdump at offset 0x6b04de. OTFCC (OpenType Font Compression and Conversion) is a tool used for manipulating OpenType font files. The vulnerability is classified under CWE-787, which corresponds to out-of-bounds write errors, specifically a heap buffer overflow. This type of vulnerability occurs when a program writes more data to a heap-allocated buffer than it can hold, potentially leading to memory corruption. According to the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H), the vulnerability is remotely exploitable over the network without requiring privileges, but it does require user interaction (UI:R). The impact is limited to availability (A:H), meaning the attacker can cause a denial of service or crash the application, but there is no direct impact on confidentiality or integrity. No known exploits are currently reported in the wild, and no patches or vendor information are provided, indicating that this vulnerability might be in an open-source or less widely distributed tool. The lack of affected version details suggests the vulnerability is tied to a specific commit rather than a released product version. Overall, this vulnerability could allow an attacker to crash or disrupt services that rely on OTFCC tools for font processing by supplying crafted font files that trigger the heap overflow during font dump operations.
Potential Impact
For European organizations, the primary impact of CVE-2022-35050 would be service disruption or denial of service in environments where OTFCC tools are used for font processing, font conversion, or font analysis. This could affect software development firms, digital publishing companies, graphic design agencies, and any enterprise relying on automated font manipulation pipelines. Since the vulnerability does not affect confidentiality or integrity, the risk of data breach or unauthorized code execution is low. However, availability impacts could disrupt business operations, especially if font processing is part of critical workflows or automated build systems. The requirement for user interaction implies that exploitation would likely occur through a user opening or processing a malicious font file, which could be delivered via email attachments, downloads, or embedded in documents. European organizations with strict uptime requirements or those in sectors such as media, publishing, or software development should be aware of potential service interruptions. Given no known exploits in the wild, the immediate threat level is moderate, but organizations should remain vigilant and monitor for updates or patches.
Mitigation Recommendations
1. Avoid processing untrusted or unauthenticated font files with OTFCC tools until a patch or update is available. 2. Implement strict input validation and sandboxing when handling font files to limit the impact of potential crashes. 3. Monitor and restrict user interactions that involve opening or processing font files from unknown sources, including email filtering and endpoint protection controls. 4. Use application whitelisting and privilege restrictions to limit the execution context of OTFCC tools, minimizing the potential for broader system impact. 5. Regularly check for updates or patches from the OTFCC project or maintainers and apply them promptly once available. 6. Incorporate runtime monitoring and logging to detect abnormal crashes or memory errors related to font processing tools. 7. Educate users about the risks of opening font files from untrusted sources to reduce the likelihood of triggering the vulnerability through social engineering.
Affected Countries
Germany, France, United Kingdom, Netherlands, Sweden, Finland
CVE-2022-35050: n/a in n/a
Description
OTFCC commit 617837b was discovered to contain a heap buffer overflow via /release-x64/otfccdump+0x6b04de.
AI-Powered Analysis
Technical Analysis
CVE-2022-35050 is a medium-severity heap buffer overflow vulnerability identified in a specific commit (617837b) of the OTFCC project, specifically triggered via the binary path /release-x64/otfccdump at offset 0x6b04de. OTFCC (OpenType Font Compression and Conversion) is a tool used for manipulating OpenType font files. The vulnerability is classified under CWE-787, which corresponds to out-of-bounds write errors, specifically a heap buffer overflow. This type of vulnerability occurs when a program writes more data to a heap-allocated buffer than it can hold, potentially leading to memory corruption. According to the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H), the vulnerability is remotely exploitable over the network without requiring privileges, but it does require user interaction (UI:R). The impact is limited to availability (A:H), meaning the attacker can cause a denial of service or crash the application, but there is no direct impact on confidentiality or integrity. No known exploits are currently reported in the wild, and no patches or vendor information are provided, indicating that this vulnerability might be in an open-source or less widely distributed tool. The lack of affected version details suggests the vulnerability is tied to a specific commit rather than a released product version. Overall, this vulnerability could allow an attacker to crash or disrupt services that rely on OTFCC tools for font processing by supplying crafted font files that trigger the heap overflow during font dump operations.
Potential Impact
For European organizations, the primary impact of CVE-2022-35050 would be service disruption or denial of service in environments where OTFCC tools are used for font processing, font conversion, or font analysis. This could affect software development firms, digital publishing companies, graphic design agencies, and any enterprise relying on automated font manipulation pipelines. Since the vulnerability does not affect confidentiality or integrity, the risk of data breach or unauthorized code execution is low. However, availability impacts could disrupt business operations, especially if font processing is part of critical workflows or automated build systems. The requirement for user interaction implies that exploitation would likely occur through a user opening or processing a malicious font file, which could be delivered via email attachments, downloads, or embedded in documents. European organizations with strict uptime requirements or those in sectors such as media, publishing, or software development should be aware of potential service interruptions. Given no known exploits in the wild, the immediate threat level is moderate, but organizations should remain vigilant and monitor for updates or patches.
Mitigation Recommendations
1. Avoid processing untrusted or unauthenticated font files with OTFCC tools until a patch or update is available. 2. Implement strict input validation and sandboxing when handling font files to limit the impact of potential crashes. 3. Monitor and restrict user interactions that involve opening or processing font files from unknown sources, including email filtering and endpoint protection controls. 4. Use application whitelisting and privilege restrictions to limit the execution context of OTFCC tools, minimizing the potential for broader system impact. 5. Regularly check for updates or patches from the OTFCC project or maintainers and apply them promptly once available. 6. Incorporate runtime monitoring and logging to detect abnormal crashes or memory errors related to font processing tools. 7. Educate users about the risks of opening font files from untrusted sources to reduce the likelihood of triggering the vulnerability through social engineering.
Affected Countries
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Technical Details
- Data Version
- 5.1
- Assigner Short Name
- mitre
- Date Reserved
- 2022-07-04T00:00:00.000Z
- Cisa Enriched
- true
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 682cd0fa1484d88663aec507
Added to database: 5/20/2025, 6:59:06 PM
Last enriched: 7/6/2025, 9:11:46 AM
Last updated: 8/9/2025, 6:43:39 AM
Views: 11
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