Debian Security Bug TrackerDEBIANCVE:CVE-2021-23973CVE-2021-23973
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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
0.012 Low
EPSS
Percentile
85.4%
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 999 | all | firefox | < 86.0-1 | firefox_86.0-1_all.deb |
| Debian | 12 | all | firefox-esr | < 78.8.0esr-1 | firefox-esr_78.8.0esr-1_all.deb |
| Debian | 11 | all | firefox-esr | < 78.8.0esr-1 | firefox-esr_78.8.0esr-1_all.deb |
| Debian | 10 | all | firefox-esr | < 78.8.0esr-1~deb10u1 | firefox-esr_78.8.0esr-1~deb10u1_all.deb |
| Debian | 999 | all | firefox-esr | < 78.8.0esr-1 | firefox-esr_78.8.0esr-1_all.deb |
| Debian | 13 | all | firefox-esr | < 78.8.0esr-1 | firefox-esr_78.8.0esr-1_all.deb |
| Debian | 12 | all | thunderbird | < 1:78.8.0-1 | thunderbird_1:78.8.0-1_all.deb |
| Debian | 11 | all | thunderbird | < 1:78.8.0-1 | thunderbird_1:78.8.0-1_all.deb |
| Debian | 10 | all | thunderbird | < 1:78.8.0-1~deb10u1 | thunderbird_1:78.8.0-1~deb10u1_all.deb |
| Debian | 999 | all | thunderbird | < 1:78.8.0-1 | thunderbird_1:78.8.0-1_all.deb |
Related
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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
0.012 Low
EPSS
Percentile
85.4%