Mozilla Firefox up to 111 on macOS WebGL API memory corruption

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.5 | $5k-$25k | 0.00 |
Summary
A vulnerability marked as critical has been reported in Mozilla Firefox up to 111 on macOS. Affected by this issue is some unknown functionality of the component WebGL API. This manipulation causes memory corruption. This vulnerability is registered as CVE-2023-29531. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.
Details
A vulnerability has been found in Mozilla Firefox up to 111 on macOS (Web Browser) and classified as critical. Affected by this vulnerability is an unknown code of the component WebGL API. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption and a potentially exploitable crash. *This bug only affects Firefox and Thunderbird for macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
The weakness was published 04/11/2023 by DoHyun Lee as Bug 1794292 as confirmed advisory (Website). The advisory is shared at bugzilla.mozilla.org. The advisory contains:
An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption and a potentially exploitable crash.This bug only affects Firefox for macOS. Other operating systems are unaffected.This vulnerability is known as CVE-2023-29531. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/11/2024).
Upgrading to version 112 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.mozilla.org/
- Product: https://www.mozilla.org/en-US/firefox/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.6VulDB Meta Temp Score: 8.5
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CNA Base Score: 9.8
CNA Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Firefox 112
Timeline
04/07/2023 🔍04/11/2023 🔍
04/11/2023 🔍
04/14/2023 🔍
04/27/2025 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: Bug 1794292
Researcher: DoHyun Lee
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2023-29531 (🔍)
GCVE (CVE): GCVE-0-2023-29531
GCVE (VulDB): GCVE-100-225985
Entry
Created: 04/14/2023 16:28Updated: 04/27/2025 10:18
Changes: 04/14/2023 16:28 (18), 04/14/2023 16:31 (29), 05/03/2023 10:54 (1), 12/11/2024 17:34 (36), 04/27/2025 10:18 (3)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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