Debian Security Bug TrackerDEBIANCVE:CVE-2021-4129CVE-2021-4129
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
49.5%
Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Firefox 94. 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. This vulnerability affects Firefox < 95, Firefox ESR < 91.4.0, and Thunderbird < 91.4.0.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 999 | all | firefox | < 95.0-1 | firefox_95.0-1_all.deb |
| Debian | 12 | all | firefox-esr | < 91.4.0esr-1 | firefox-esr_91.4.0esr-1_all.deb |
| Debian | 11 | all | firefox-esr | < 91.4.1esr-1~deb11u1 | firefox-esr_91.4.1esr-1~deb11u1_all.deb |
| Debian | 10 | all | firefox-esr | < 91.4.0esr-1 | firefox-esr_91.4.0esr-1_all.deb |
| Debian | 999 | all | firefox-esr | < 91.4.0esr-1 | firefox-esr_91.4.0esr-1_all.deb |
| Debian | 13 | all | firefox-esr | < 91.4.0esr-1 | firefox-esr_91.4.0esr-1_all.deb |
| Debian | 12 | all | thunderbird | < 1:91.4.0-1 | thunderbird_1:91.4.0-1_all.deb |
| Debian | 11 | all | thunderbird | < 1:91.4.1-1~deb11u1 | thunderbird_1:91.4.1-1~deb11u1_all.deb |
| Debian | 10 | all | thunderbird | < 1:91.4.1-1~deb10u1 | thunderbird_1:91.4.1-1~deb10u1_all.deb |
| Debian | 999 | all | thunderbird | < 1:91.4.0-1 | thunderbird_1:91.4.0-1_all.deb |
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
49.5%