# libjavascriptcoregtk-4.0-bin 2.32.4-0ubuntu0.18.04.1: libjavascriptcoregtk-4.0-bin 2.32.4-0ubuntu0.18.04.1 for Ubuntu 18.04.6 LTS (bionic)

libjavascriptcoregtk-4.0-bin 2.32.4-0ubuntu0.18.04.1, released December 24, 2021, fixes 6 CVEs in libjavascriptcoregtk-4.0-bin. One of them is being exploited (CVE-2021-30858); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-libjavascriptcoregtk-4.0-bin-2.32.4-0ubuntu0.18.04.1
- Platform: Linux
- Released: Dec 24, 2021
- Priority: Patch now (Closes CVE-2021-30858, exploited (CISA KEV))
- CVEs: 6, exploited: 1, on CISA KEV: 1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libjavascriptcoregtk-4.0-bin](https://patchblox.com/security/data/product/linux/libjavascriptcoregtk-4.0-bin.md) | Ubuntu 18.04.6 LTS (bionic) | 2.32.4-0ubuntu0.18.04.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-30858](https://patchblox.com/security/data/cve/CVE-2021-30858.md) | Patch now | webkit2gtk3-jsc: webkitgtk: Use-after-free leading to arbitrary code execution | 8.8 | 0.1338 | CISA KEV |
| [CVE-2021-30849](https://patchblox.com/security/data/cve/CVE-2021-30849.md) | High | iTunes: Multiple memory corruption issues were addressed with improved memory handling. | 8.8 | 0.0190 |  |
| [CVE-2021-45482](https://patchblox.com/security/data/cve/CVE-2021-45482.md) | High | webkit2gtk3-devel: ELSA-2022-1777: webkit2gtk3 security, bug fix, and enhancement update (MODERATE) | 8.8 | 0.0153 |  |
| [CVE-2021-30809](https://patchblox.com/security/data/cve/CVE-2021-30809.md) | High | webkit2gtk3-jsc-devel: ELSA-2022-1777: webkit2gtk3 security, bug fix, and enhancement update (MODERATE) | 8.8 | 0.0151 |  |
| [CVE-2021-30848](https://patchblox.com/security/data/cve/CVE-2021-30848.md) | High | webkit2gtk3-jsc: ELSA-2022-1777: webkit2gtk3 security, bug fix, and enhancement update (MODERATE) | 8.8 | 0.0127 |  |
| [CVE-2021-30836](https://patchblox.com/security/data/cve/CVE-2021-30836.md) | High | gir1.2-javascriptcoregtk-4.0: An out-of-bounds read was addressed with improved input validation | 8.8 | 0.0110 |  |

---

Data as of 2026-11-12T07:53:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo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.