[MFSA-2021-39] Security Vulnerabilities fixed in Firefox ESR 78.14
Severity
Moderate
Affected Packages
1
Fixed Packages
1
CVEs
2
- CVE-2021-38492: Navigating to "mk:" URL scheme could load Internet Explorer (moderate)
When delegating navigations to the operating system, Firefox would accept the
mk
scheme which might allow attackers to launch pages and execute scripts in Internet Explorer in unprivileged mode.
This bug only affects Firefox for Windows. Other operating systems are unaffected.
- CVE-2021-38493: Memory safety bugs fixed in Firefox 92, Firefox ESR 78.14 and Firefox ESR 91.1 (high) Mozilla developers Tyson Smith and Gabriele Svelto reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
Package | Affected Version |
---|---|
pkg:mozilla/Firefox%20ESR | < 78.14 |
Package | Fixed Version |
---|---|
pkg:mozilla/Firefox%20ESR | = 78.14 |
- ID
- MFSA-2021-39
- Severity
- moderate
- URL
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-39
- Published
-
2021-09-07T00:00:00
(3 years ago) - Modified
-
2021-09-07T00:00:00
(3 years ago) - Other Advisories
-
- ALAS2-2021-1720
- ALPINE:CVE-2021-38492
- ALPINE:CVE-2021-38493
- ALSA-2021:3497
- ALSA-2021:3499
- DSA-4969-1
- DSA-4973-1
- ELSA-2021-3494
- ELSA-2021-3497
- ELSA-2021-3498
- ELSA-2021-3499
- GLSA-202202-03
- GLSA-202208-14
- MFSA-2021-38
- MFSA-2021-40
- MFSA-2021-41
- MFSA-2021-42
- openSUSE-SU-2021:1367-1
- openSUSE-SU-2021:1635-1
- openSUSE-SU-2021:3331-1
- openSUSE-SU-2021:3451-1
- openSUSE-SU-2021:4150-1
- RHSA-2021:3494
- RHSA-2021:3497
- RHSA-2021:3498
- RHSA-2021:3499
- RLSA-2021:3497
- SUSE-SU-2021:3191-1
- SUSE-SU-2021:3331-1
- SUSE-SU-2021:3451-1
- SUSE-SU-2021:4150-1
- SUSE-SU-2022:1577-1
- SUSE-SU-2022:1582-1
- USN-5074-1
- USN-5146-1
Source | # ID | Name | URL |
---|---|---|---|
Bugzilla | 1721107 | https://bugzilla.mozilla.org/show_bug.cgi?id=1721107 | |
Bugzilla | 1723391 | Memory safety bugs fixed in Firefox 92, Firefox ESR 78.14 and Firefox ESR 91.1 | https://bugzilla.mozilla.org/show_bug.cgi?id=1723391 |
Bugzilla | 1724101 | Memory safety bugs fixed in Firefox 92, Firefox ESR 78.14 and Firefox ESR 91.1 | https://bugzilla.mozilla.org/show_bug.cgi?id=1724101 |
Bugzilla | 1724107 | Memory safety bugs fixed in Firefox 92, Firefox ESR 78.14 and Firefox ESR 91.1 | https://bugzilla.mozilla.org/show_bug.cgi?id=1724107 |
Type | Package URL | Namespace | Name / Product | Version | Distribution / Platform | Arch | Patch / Fix |
---|---|---|---|---|---|---|---|
Affected | pkg:mozilla/Firefox%20ESR | Firefox ESR | < 78.14 | ||||
Fixed | pkg:mozilla/Firefox%20ESR | Firefox ESR | = 78.14 |
# CVE | Description | CVSS | EPSS | EPSS Trend (30 days) | Affected Products | Weaknesses | Security Advisories | Exploits | PoC | Pubblication Date | Modification Date |
---|---|---|---|---|---|---|---|---|---|---|---|
# CVE | Description | CVSS | EPSS | EPSS Trend (30 days) | Affected Products | Weaknesses | Security Advisories | PoC | Pubblication Date | Modification Date |