# libjavascriptcoregtk-4.0-bin 2.28.0-0ubuntu0.18.04.3: libjavascriptcoregtk-4.0-bin 2.28.0-0ubuntu0.18.04.3 for Ubuntu 18.04.6 LTS (bionic)

libjavascriptcoregtk-4.0-bin 2.28.0-0ubuntu0.18.04.3, released September 8, 2021, fixes 9 CVEs in libjavascriptcoregtk-4.0-bin. One of them is being exploited (CVE-2021-30762); 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-2.28.0-0ubuntu0.18.04.3
- Platform: Linux
- Released: Sep 8, 2021
- Priority: Patch now (Closes CVE-2021-30762, exploited (CISA KEV))
- CVEs: 9, 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) | 2.28.0-0ubuntu0.18.04.3 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-30762](https://patchblox.com/security/data/cve/CVE-2021-30762.md) | Patch now | gir1.2-javascriptcoregtk-4.0: A use after free issue was addressed with improved memory management | 8.8 | 0.1099 | CISA KEV |
| [CVE-2020-10018](https://patchblox.com/security/data/cve/CVE-2020-10018.md) | High | dleyna-renderer: ELSA-2020-4451: GNOME security, bug fix, and enhancement update (MODERATE) | 7.5 | 0.0499 |  |
| [CVE-2020-3897](https://patchblox.com/security/data/cve/CVE-2020-3897.md) | High | iTunes: A type confusion issue was addressed with improved memory handling. | 8.8 | 0.0448 |  |
| [CVE-2020-3895](https://patchblox.com/security/data/cve/CVE-2020-3895.md) | High | iTunes: A memory corruption issue was addressed with improved memory handling. | 8.8 | 0.0267 |  |
| [CVE-2020-3901](https://patchblox.com/security/data/cve/CVE-2020-3901.md) | High | iTunes: A type confusion issue was addressed with improved memory handling. | 8.8 | 0.0188 |  |
| [CVE-2020-3900](https://patchblox.com/security/data/cve/CVE-2020-3900.md) | High | iTunes: A memory corruption issue was addressed with improved memory handling. | 8.8 | 0.0182 |  |
| [CVE-2020-3885](https://patchblox.com/security/data/cve/CVE-2020-3885.md) | Routine | iTunes: A logic issue was addressed with improved restrictions. | 4.3 | 0.0164 |  |
| [CVE-2020-3902](https://patchblox.com/security/data/cve/CVE-2020-3902.md) | Routine | iTunes: An input validation issue was addressed with improved input validation. | 6.1 | 0.0115 |  |
| [CVE-2020-3894](https://patchblox.com/security/data/cve/CVE-2020-3894.md) | Routine | iTunes: A race condition was addressed with additional validation. | 3.1 | 0.0106 |  |

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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

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