CVE-2017-7784
Fixed in a distro release EPSS 4%
A use-after-free vulnerability can occur when reading an image observer during frame reconstruction after the observer has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
Products: debian_linux, redhat enterprise_linux, redhat enterprise_linux_desktop, redhat enterprise_linux_server, redhat enterprise_linux_server_aus, redhat enterprise_linux_server_eus, redhat enterprise_linux_workstation, mozilla thunderbird, mozilla firefox, mozilla firefox_esr
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Arch Linux | firefox | 55.0-1 |
| Arch Linux | thunderbird | 52.3.0-1 |
| Debian 12 | firefox-esr | 52.3.0esr-1 |
| Debian 13 | firefox-esr | 52.3.0esr-1 |
| Debian 14 | firefox-esr | 52.3.0esr-1 |
| Debian 7 | firefox-esr | 52.3.0esr-1~deb7u1 |
| Debian 7 | icedove | 1:52.3.0-4~deb7u1 |
| Debian 8 | firefox-esr | 52.3.0esr-1~deb8u2 |
| Debian 8 | icedove | 1:52.3.0-4~deb8u2 |
| Debian 9 | firefox-esr | 52.3.0esr-1~deb9u1 |
| Debian 9 | icedove | 1:52.3.0-4~deb9u1 |
| Red Hat Enterprise Linux 6 | firefox | 0:52.3.0-3.el6_9 |
| Red Hat Enterprise Linux 6 | firefox-debuginfo | 0:52.3.0-3.el6_9 |
| Red Hat Enterprise Linux 6 | thunderbird | 0:52.3.0-1.el6_9 |
| Red Hat Enterprise Linux 6 | thunderbird-debuginfo | 0:52.3.0-1.el6_9 |
| Red Hat Enterprise Linux 7 | firefox | 0:52.3.0-2.el7_4 |
| Red Hat Enterprise Linux 7 | firefox-debuginfo | 0:52.3.0-2.el7_4 |
| Red Hat Enterprise Linux 7 | thunderbird | 0:52.3.0-1.el7_4 |
| Red Hat Enterprise Linux 7 | thunderbird-debuginfo | 0:52.3.0-1.el7_4 |
| SUSE Linux Enterprise Desktop 12 SP2 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Desktop 12 SP3 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | MozillaFirefox | 52.3.0esr-72.9.1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | MozillaFirefox-branding-SLED | 52-24.5.1 |
| SUSE Linux Enterprise Server 11 SP3-LTSS | MozillaFirefox | 52.3.0esr-72.9.1 |
| SUSE Linux Enterprise Server 11 SP3-LTSS | MozillaFirefox-branding-SLED | 52-24.5.1 |
| SUSE Linux Enterprise Server 11 SP3-TERADATA | MozillaFirefox | 52.3.0esr-72.9.1 |
| SUSE Linux Enterprise Server 11 SP3-TERADATA | MozillaFirefox-branding-SLED | 52-24.5.1 |
| SUSE Linux Enterprise Server 11 SP4 | MozillaFirefox | 52.3.0esr-72.9.1 |
| SUSE Linux Enterprise Server 11 SP4 | MozillaFirefox-branding-SLED | 52-24.5.1 |
| SUSE Linux Enterprise Server 12 SP1-LTSS | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Server 12 SP2 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Server 12 SP3 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Server 12-LTSS | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Server for SAP Applications 11 SP4 | MozillaFirefox | 52.3.0esr-72.9.1 |
| SUSE Linux Enterprise Server for SAP Applications 11 SP4 | MozillaFirefox-branding-SLED | 52-24.5.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Software Development Kit 11 SP4 | MozillaFirefox | 52.3.0esr-72.9.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE OpenStack Cloud 6 | MozillaFirefox | 52.3.0esr-109.3.1 |
| SUSE Package Hub 12 | MozillaThunderbird | 52.3.0-42.1 |
| Ubuntu 14.04 LTS | firefox | 55.0.1+build2-0ubuntu0.14.04.2 |
| Ubuntu 14.04 LTS | thunderbird | 1:52.3.0+build1-0ubuntu0.14.04.1 |
| Ubuntu 16.04 LTS | firefox | 55.0.1+build2-0ubuntu0.16.04.2 |
| Ubuntu 16.04 LTS | thunderbird | 1:52.3.0+build1-0ubuntu0.16.04.1 |
| Ubuntu 18.04 LTS | mozjs38 | no fix |
| Ubuntu 18.04 LTS | thunderbird | 1:52.4.0+build1-0ubuntu2 |
| openSUSE Tumbleweed | MozillaFirefox | 92.0-1.2 |
| openSUSE Tumbleweed | MozillaThunderbird | 91.1.1-1.1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 |