Debian Security Bug TrackerDEBIANCVE:CVE-2021-23961CVE-2021-23961
7.4 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.009 Low
EPSS
Percentile
82.1%
Further techniques that built on the slipstream research combined with a malicious webpage could have exposed both an internal network’s hosts as well as services running on the user’s local machine. This vulnerability affects Firefox < 85.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 999 | all | firefox | < 85.0-1 | firefox_85.0-1_all.deb |
| Debian | 12 | all | firefox-esr | < 78.10.0esr-1 | firefox-esr_78.10.0esr-1_all.deb |
| Debian | 11 | all | firefox-esr | < 78.10.0esr-1 | firefox-esr_78.10.0esr-1_all.deb |
| Debian | 10 | all | firefox-esr | < 78.10.0esr-1~deb10u1 | firefox-esr_78.10.0esr-1~deb10u1_all.deb |
| Debian | 999 | all | firefox-esr | < 78.10.0esr-1 | firefox-esr_78.10.0esr-1_all.deb |
| Debian | 13 | all | firefox-esr | < 78.10.0esr-1 | firefox-esr_78.10.0esr-1_all.deb |
| Debian | 12 | all | thunderbird | < 1:78.10.0-1 | thunderbird_1:78.10.0-1_all.deb |
| Debian | 11 | all | thunderbird | < 1:78.10.0-1 | thunderbird_1:78.10.0-1_all.deb |
| Debian | 10 | all | thunderbird | < 1:78.10.0-1~deb10u1 | thunderbird_1:78.10.0-1~deb10u1_all.deb |
| Debian | 999 | all | thunderbird | < 1:78.10.0-1 | thunderbird_1:78.10.0-1_all.deb |
Related
7.4 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.009 Low
EPSS
Percentile
82.1%