| Name | CVE-2019-17026 |
| Description | Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1. |
| 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-2071-1, DLA-2093-1, DSA-4600-1, DSA-4603-1 |
| Debian Bugs | 948452 |
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) | 72.0.1-1 | 948452 | ||
| firefox-esr | source | jessie | 68.4.1esr-1~deb8u1 | DLA-2093-1 | ||
| firefox-esr | source | stretch | 68.4.1esr-1~deb9u1 | DSA-4600-1 | ||
| firefox-esr | source | buster | 68.4.1esr-1~deb10u1 | DSA-4600-1 | ||
| firefox-esr | source | (unstable) | 68.4.1esr-1 | |||
| thunderbird | source | jessie | 1:68.4.1-1~deb8u1 | DLA-2071-1 | ||
| thunderbird | source | stretch | 1:68.4.1-1~deb9u1 | DSA-4603-1 | ||
| thunderbird | source | buster | 1:68.4.1-1~deb10u1 | DSA-4603-1 | ||
| thunderbird | source | (unstable) | 1:68.4.1-1 |
https://www.mozilla.org/en-US/security/advisories/mfsa2020-03/#CVE-2019-17026
https://www.mozilla.org/en-US/security/advisories/mfsa2020-04/#CVE-2019-17026