5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.006 Low
EPSS
Percentile
77.3%
Add-on updates failed to verify that the add-on ID inside the signed package matched the ID of the add-on being updated. An attacker who could perform a man-in-the-middle attack on the user’s connection to the update server and defeat the certificate pinning protection could provide a malicious signed add-on instead of a valid update. This vulnerability affects Firefox ESR < 45.5 and Firefox < 50.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 999 | all | firefox | < 50.0-1 | firefox_50.0-1_all.deb |
Debian | 12 | all | firefox-esr | < 45.5.0esr-1 | firefox-esr_45.5.0esr-1_all.deb |
Debian | 11 | all | firefox-esr | < 45.5.0esr-1 | firefox-esr_45.5.0esr-1_all.deb |
Debian | 10 | all | firefox-esr | < 45.5.0esr-1 | firefox-esr_45.5.0esr-1_all.deb |
Debian | 999 | all | firefox-esr | < 45.5.0esr-1 | firefox-esr_45.5.0esr-1_all.deb |
Debian | 13 | all | firefox-esr | < 45.5.0esr-1 | firefox-esr_45.5.0esr-1_all.deb |
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.006 Low
EPSS
Percentile
77.3%