# thunderbird 1:115.3.1+build1-0ubuntu0.22.04.2: thunderbird 1:115.3.1+build1-0ubuntu0.22.04.2 for Ubuntu 22.04.1 LTS (jammy)

thunderbird 1:115.3.1+build1-0ubuntu0.22.04.2, released September 28, 2023, fixes 11 CVEs in thunderbird. One of them is being exploited (CVE-2023-5217); 1 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-jammy-thunderbird-1-115.3.1-build1-0ubuntu0.22.04.2
- Platform: Linux
- Released: Sep 28, 2023
- Priority: Patch now (Closes CVE-2023-5217, exploited (CISA KEV))
- CVEs: 11, exploited: 1, on CISA KEV: 1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [thunderbird](https://patchblox.com/security/data/product/linux/thunderbird.md) | Ubuntu 22.04.1 LTS (jammy) | 1:115.3.1+build1-0ubuntu0.22.04.2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-5217](https://patchblox.com/security/data/cve/CVE-2023-5217.md) | Patch now | Chromium: CVE-2023-5217 Heap buffer overflow in vp8 encoding in libvpx | 8.8 | 0.4901 | CISA KEV, Disclosed |
| [CVE-2023-5176](https://patchblox.com/security/data/cve/CVE-2023-5176.md) | Urgent | Mozilla Firefox ESR and 5 others: Out-of-bounds Write | 9.8 | 0.0139 |  |
| [CVE-2023-4057](https://patchblox.com/security/data/cve/CVE-2023-4057.md) | Urgent | Mozilla Firefox ESR and 5 others: Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. | 9.8 | 0.0089 |  |
| [CVE-2023-4585](https://patchblox.com/security/data/cve/CVE-2023-4585.md) | High | Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2 | 8.8 | 0.0077 |  |
| [CVE-2023-4583](https://patchblox.com/security/data/cve/CVE-2023-4583.md) | High | Browsing Context potentially not cleared when closing Private Window | 8.8 | 0.0069 |  |
| [CVE-2023-4577](https://patchblox.com/security/data/cve/CVE-2023-4577.md) | High | Memory corruption in JIT UpdateRegExpStatics | 8.8 | 0.0065 |  |
| [CVE-2023-3600](https://patchblox.com/security/data/cve/CVE-2023-3600.md) | High | Use-after-free in workers | 8.8 | 0.0063 |  |
| [CVE-2023-4578](https://patchblox.com/security/data/cve/CVE-2023-4578.md) | High | Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception | 8.8 | 0.0062 |  |
| [CVE-2023-4580](https://patchblox.com/security/data/cve/CVE-2023-4580.md) | High | Push notifications saved to disk unencrypted | 8.8 | 0.0042 |  |
| [CVE-2023-5171](https://patchblox.com/security/data/cve/CVE-2023-5171.md) | Routine | Mozilla Firefox ESR and 5 others: During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing… | 6.5 | 0.0112 |  |
| [CVE-2023-5169](https://patchblox.com/security/data/cve/CVE-2023-5169.md) | Routine | Mozilla Firefox ESR and 5 others: A compromised content process could have provided malicious data in a `PathRecording` resulting in an… | 6.5 | 0.0110 |  |

---

Data as of 2026-11-14T02:05:58Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.