| Name | CVE-2019-9791 |
| Description | The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor function is entered through on-stack replacement (OSR). This allows for possible arbitrary reading and writing of objects during an exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1722-1, DLA-1743-1, DSA-4411-1, DSA-4420-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| firefox (PTS) | sid | 128.0.2-1 | fixed |
| firefox-esr (PTS) | bullseye | 115.12.0esr-1~deb11u1 | fixed |
| bullseye (security) | 115.13.0esr-1~deb11u1 | fixed | |
| bookworm | 115.12.0esr-1~deb12u1 | fixed | |
| bookworm (security) | 115.13.0esr-1~deb12u1 | fixed | |
| trixie | 115.12.0esr-1 | fixed | |
| sid | 115.13.0esr-2 | fixed | |
| thunderbird (PTS) | bullseye | 1:115.12.0-1~deb11u1 | fixed |
| bullseye (security) | 1:115.13.0-1~deb11u1 | fixed | |
| bookworm | 1:115.12.0-1~deb12u1 | fixed | |
| bookworm (security) | 1:115.13.0-1~deb12u1 | fixed | |
| sid, trixie | 1:115.13.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| firefox | source | (unstable) | 66.0-1 | |||
| firefox-esr | source | jessie | 60.6.0esr-1~deb8u1 | DLA-1722-1 | ||
| firefox-esr | source | stretch | 60.6.0esr-1~deb9u1 | DSA-4411-1 | ||
| firefox-esr | source | (unstable) | 60.6.0esr-1 | |||
| thunderbird | source | jessie | 1:60.6.1-1~deb8u1 | DLA-1743-1 | ||
| thunderbird | source | stretch | 1:60.6.1-1~deb9u1 | DSA-4420-1 | ||
| thunderbird | source | (unstable) | 1:60.6.1-1 |
https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9791
https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9791
https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9791