CVE-2023-34415
Published: 7 June 2023
When choosing a site-isolated process for a document loaded from a data: URL that was the result of a redirect, Firefox would load that document in the same process as the site that issued the redirect. This bypassed the site-isolation protections against Spectre-like attacks on sites that host an "open redirect". Firefox no longer follows HTTP redirects to data: URLs. This vulnerability affects Firefox < 114.
Notes
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
| mdeslaur | starting with Ubuntu 22.04, the firefox package is just a script that installs the Firefox snap |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
jammy |
Not vulnerable
(code not present)
|
| kinetic |
Not vulnerable
(code not present)
|
|
| lunar |
Not vulnerable
(code not present)
|
|
| upstream |
Needs triage
|
|
| trusty |
Ignored
(end of standard support)
|
|
| xenial |
Ignored
(end of standard support)
|
|
| bionic |
Ignored
(end of standard support)
|
|
| focal |
Released
(114.0+build3-0ubuntu0.20.04.1)
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
trusty |
Ignored
(end of standard support)
|
| xenial |
Ignored
(end of standard support)
|
|
| bionic |
Ignored
(end of standard support)
|
|
| focal |
Not vulnerable
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Ignored
(end of life, was needed)
|
|
| lunar |
Not vulnerable
|
|
| upstream |
Needs triage
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.1 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Changed |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |