Mozilla Thunderbird up to 91.8 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.9$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Mozilla Thunderbird up to 91.8. Affected by this vulnerability is an unknown functionality. The manipulation results in memory corruption. This vulnerability is identified as CVE-2022-29917. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Mozilla Thunderbird up to 91.8 (Mail Client Software). Affected is some unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Mozilla developers Andrew McCreight, Gabriele Svelto, Tom Ritter and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 99 and Firefox ESR 91.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

The weakness was released 05/03/2022 by Gabriele Svelto and Tom Ritter as Memory safety bugs fixed in Thunderbird 91.9 as confirmed advisory (Website). The advisory is available at bugzilla.mozilla.org. The advisory contains:

Mozilla developers Gabriele Svelto, Tom Ritter and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 91.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
This vulnerability is traded as CVE-2022-29917. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 08/17/2025).

The vulnerability scanner Nessus provides a plugin with the ID 249999 (Linux Distros Unpatched Vulnerability : CVE-2022-29917), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 91.9 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (249999). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 249999
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-29917

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Thunderbird 91.9

Timelineinfo

04/29/2022 🔍
05/03/2022 +4 days 🔍
05/03/2022 +0 days 🔍
09/30/2022 +150 days 🔍
08/17/2025 +1052 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: Memory safety bugs fixed in Thunderbird 91.9
Researcher: Gabriele Svelto, Tom Ritter
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-29917 (🔍)
GCVE (CVE): GCVE-0-2022-29917
GCVE (VulDB): GCVE-100-209946

Entryinfo

Created: 09/30/2022 10:06
Updated: 08/17/2025 22:37
Changes: 09/30/2022 10:06 (18), 09/30/2022 10:09 (27), 10/26/2022 14:09 (1), 04/15/2025 18:01 (27), 08/17/2025 22:37 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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