# CVE-2018-5160: firefox: WebRTC can use a "WrappedI420Buffer" pixel buffer but the owning image object can be freed while it is still in use

CVE-2018-5160 is fixed in 4 products on 1 platform, first by firefox 60.0+build2-0ubuntu1, released May 10, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-5160
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0260
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 10, 2018

## Description

WebRTC can use a "WrappedI420Buffer" pixel buffer but the owning image object can be freed while it is still in use. This can result in the WebRTC encoder using uninitialized memory, leading to a potentially exploitable crash. This vulnerability affects Firefox < 60.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 60.0+build2-0ubuntu1 | [firefox 60.0+build2-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-60.0-build2-0ubuntu1.md) | May 10, 2018 |
| Linux | firefox-globalmenu Ubuntu 18.04.6 LTS (bionic) | 60.0+build2-0ubuntu1 | [firefox-globalmenu 60.0+build2-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-globalmenu-60.0-build2-0ubuntu1.md) | May 10, 2018 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 60.0+build2-0ubuntu1 | [firefox-mozsymbols 60.0+build2-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-60.0-build2-0ubuntu1.md) | May 10, 2018 |
| Linux | firefox-testsuite Ubuntu 18.04.6 LTS (bionic) | 60.0+build2-0ubuntu1 | [firefox-testsuite 60.0+build2-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-testsuite-60.0-build2-0ubuntu1.md) | May 10, 2018 |

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