# firefox 56.0+build6-0ubuntu1: firefox 56.0+build6-0ubuntu1 for Ubuntu 18.04.6 LTS (bionic)

firefox 56.0+build6-0ubuntu1, released October 1, 2017, fixes 16 CVEs in firefox. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-56.0-build6-0ubuntu1
- Platform: Linux
- Released: Oct 1, 2017
- Priority: Routine (Closes 16 CVEs, none high severity)
- CVEs: 16, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [firefox](https://patchblox.com/security/data/product/linux/firefox.md) | Ubuntu 18.04.6 LTS (bionic) | 56.0+build6-0ubuntu1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2017-7824](https://patchblox.com/security/data/cve/CVE-2017-7824.md) | Routine | firefox: A buffer overflow occurs when drawing and validating elements with the ANGLE graphics library, used for WebGL content | n/a | 0.0352 |  |
| [CVE-2017-7818](https://patchblox.com/security/data/cve/CVE-2017-7818.md) | Routine | firefox: A use-after-free vulnerability can occur when manipulating arrays of Accessible Rich Internet Applications (ARIA) ele... | n/a | 0.0331 |  |
| [CVE-2017-7819](https://patchblox.com/security/data/cve/CVE-2017-7819.md) | Routine | firefox: A use-after-free vulnerability can occur in design mode when image objects are resized if objects referenced during t... | n/a | 0.0331 |  |
| [CVE-2017-7805](https://patchblox.com/security/data/cve/CVE-2017-7805.md) | Routine | firefox: During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer | n/a | 0.0305 |  |
| [CVE-2017-7810](https://patchblox.com/security/data/cve/CVE-2017-7810.md) | Routine | firefox: Memory safety bugs were reported in Firefox 55 and Firefox ESR 52.3 | n/a | 0.0280 |  |
| [CVE-2017-7811](https://patchblox.com/security/data/cve/CVE-2017-7811.md) | Routine | firefox: Memory safety bugs were reported in Firefox 55 | n/a | 0.0227 |  |
| [CVE-2017-7793](https://patchblox.com/security/data/cve/CVE-2017-7793.md) | Routine | firefox: A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when sti... | n/a | 0.0227 |  |
| [CVE-2017-7821](https://patchblox.com/security/data/cve/CVE-2017-7821.md) | Routine | firefox: A vulnerability where WebExtensions can download and attempt to open a file of some non-executable file types | n/a | 0.0191 |  |
| [CVE-2017-7813](https://patchblox.com/security/data/cve/CVE-2017-7813.md) | Routine | firefox: Inside the JavaScript parser, a cast of an integer to a narrower type can result in data read from outside the buffer... | n/a | 0.0156 |  |
| [CVE-2017-7823](https://patchblox.com/security/data/cve/CVE-2017-7823.md) | Routine | firefox: The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to... | n/a | 0.0144 |  |
| [CVE-2017-7822](https://patchblox.com/security/data/cve/CVE-2017-7822.md) | Routine | firefox: The AES-GCM implementation in WebCrypto API accepts 0-length IV when it should require a length of 1 according to the... | n/a | 0.0133 |  |
| [CVE-2017-7812](https://patchblox.com/security/data/cve/CVE-2017-7812.md) | Routine | firefox: If web content on a page is dragged onto portions of the browser UI, such as the tab bar, links can be opened that ot... | n/a | 0.0123 |  |
| [CVE-2017-7816](https://patchblox.com/security/data/cve/CVE-2017-7816.md) | Routine | firefox-mozsymbols: WebExtensions could use popups and panels in the extension UI to load an "about:" privileged URL, violating security... | n/a | 0.0123 |  |
| [CVE-2017-7814](https://patchblox.com/security/data/cve/CVE-2017-7814.md) | Routine | firefox: File downloads encoded with "blob:" and "data:" URL elements bypassed normal file download checks though the Phishing... | n/a | 0.0119 |  |
| [CVE-2017-7820](https://patchblox.com/security/data/cve/CVE-2017-7820.md) | Routine | firefox: The "instanceof" operator can bypass the Xray wrapper mechanism | n/a | 0.0116 |  |
| [CVE-2017-7815](https://patchblox.com/security/data/cve/CVE-2017-7815.md) | Routine | firefox: On pages containing an iframe, the "data:" protocol can be used to create a modal dialog through Javascript that will... | n/a | 0.0114 |  |

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