Mozilla Thunderbird up to 115.0.1 ColorPickerShownCallback use after free

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.2 | $5k-$25k | 0.00 |
Summary
A vulnerability has been found in Mozilla Thunderbird and classified as critical. This issue affects the function ColorPickerShownCallback. The manipulation leads to use after free.
This vulnerability is referenced as CVE-2023-4574. Remote exploitation of the attack is possible. No exploit is available.
The affected component should be upgraded.
Details
A vulnerability, which was classified as critical, has been found in Mozilla Thunderbird (Mail Client Software). This issue affects the function ColorPickerShownCallback. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, and Thunderbird < 115.2.
The weakness was published 09/11/2023. It is possible to read the advisory at mozilla.org. The identification of this vulnerability is CVE-2023-4574 since 08/29/2023. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 06/20/2025).
The vulnerability scanner Nessus provides a plugin with the ID 239763 (TencentOS Server 4: thunderbird (TSSA-2024:0450)), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 115.2 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.
The vulnerability is also documented in the vulnerability database at Tenable (239763). Be aware that VulDB is the high quality source for vulnerability data.
Product
Type
Vendor
Name
Version
- 0.1
- 0.2
- 0.3
- 0.4
- 0.5
- 0.6
- 0.7
- 0.7.1
- 0.7.2
- 0.7.3
- 0.8
- 0.9
- 1
- 1.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.7
- 1.0.8
- 1.0.9
- 1.1.8
- 1.5
- 1.5.0.1
- 1.5.0.2
- 1.5.0.3
- 1.5.0.4
- 1.5.0.5
- 1.5.0.6
- 1.5.0.7
- 1.5.0.8
- 1.5.0.9
- 1.5.0.10
- 1.5.0.11
- 2
- 2.0.0.5
- 2.0.0.11
- 2.0.0.19
- 2.0.14
- 3.11.5
- 13.0
- 14
- 15
- 16
- 16.0.1
- 16.0.2
- 17.0
- 17.0.1
- 17.0.2
- 17.0.3
- 17.0.4
- 17.0.5
- 17.0.6
- 17.0.7
- 17.0.8
- 17.0.10
- 18.0
- 20.0
- 21.0
- 23.0
- 24.0
- 25.0
- 30.0
- 31
- 45.6
- 52.5.2
- 52.6
- 52.8
- 52.9
- 60.5
- 60.5.0
- 60.5.1
- 60.7.1
- 62.0
- 68.1
- 68.1.1
- 68.5
- 68.8.0
- 68.9.0
- 68.10.0
- 68.12
- 78.5.1
- 78.6.1
- 78.7
- 78.8.1
- 78.9.1
- 78.10
- 78.10.1
- 78.10.2
- 78.12
- 91.0
- 91.0.1
- 91.2
- 91.3.0
- 91.4.0
- 91.4.1
- 91.5
- 91.6
- 91.6.1
- 91.7
- 91.8
- 91.9
- 91.10
- 91.11
- 91.13.1
- 101
- 102
- 102.1
- 102.2
- 102.3
- 102.4
- 102.5
- 102.5.1
- 102.6
- 102.7
- 102.7.1
- 102.8
- 102.9
- 102.9.1
- 102.10
- 102.11
- 102.12
- 102.13
- 115.0.1
License
Website
- Vendor: https://www.mozilla.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.2
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.5
NVD 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: Use after freeCWE: CWE-416 / 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 |
Nessus ID: 239763
Nessus Name: TencentOS Server 4: thunderbird (TSSA-2024:0450)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Thunderbird 115.2
Timeline
08/29/2023 🔍09/11/2023 🔍
09/11/2023 🔍
06/20/2025 🔍
Sources
Vendor: mozilla.orgAdvisory: mozilla.org
Status: Confirmed
CVE: CVE-2023-4574 (🔍)
GCVE (CVE): GCVE-0-2023-4574
GCVE (VulDB): GCVE-100-239375
Entry
Created: 09/11/2023 15:05Updated: 06/20/2025 17:40
Changes: 09/11/2023 15:05 (40), 10/04/2023 19:15 (11), 06/20/2025 17:40 (18)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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