Debian Security Bug TrackerDEBIANCVE:CVE-2021-29987CVE-2021-29987
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
0.001 Low
EPSS
Percentile
46.6%
After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to. This bug only affects Firefox on Linux. Other operating systems are unaffected.. This vulnerability affects Firefox < 91 and Thunderbird < 91.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 999 | all | firefox | < 91.0-1 | firefox_91.0-1_all.deb |
| Debian | 12 | all | thunderbird | < 1:115.7.0-1~deb12u1 | thunderbird_1:115.7.0-1~deb12u1_all.deb |
| Debian | 11 | all | thunderbird | < 1:115.7.0-1~deb11u1 | thunderbird_1:115.7.0-1~deb11u1_all.deb |
| Debian | 10 | all | thunderbird | < 1:91.12.0-1~deb10u1 | thunderbird_1:91.12.0-1~deb10u1_all.deb |
| Debian | 999 | all | thunderbird | < 1:115.9.0-1 | thunderbird_1:115.9.0-1_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
0.001 Low
EPSS
Percentile
46.6%