Debian Security Bug TrackerDEBIANCVE:CVE-2020-6819CVE-2020-6819
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.024 Low
EPSS
Percentile
89.7%
Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 999 | all | firefox | < 74.0.1-1 | firefox_74.0.1-1_all.deb |
| Debian | 12 | all | firefox-esr | < 68.6.1esr-1 | firefox-esr_68.6.1esr-1_all.deb |
| Debian | 11 | all | firefox-esr | < 68.6.1esr-1 | firefox-esr_68.6.1esr-1_all.deb |
| Debian | 10 | all | firefox-esr | < 68.6.1esr-1~deb10u1 | firefox-esr_68.6.1esr-1~deb10u1_all.deb |
| Debian | 999 | all | firefox-esr | < 68.6.1esr-1 | firefox-esr_68.6.1esr-1_all.deb |
| Debian | 13 | all | firefox-esr | < 68.6.1esr-1 | firefox-esr_68.6.1esr-1_all.deb |
| Debian | 12 | all | thunderbird | < 1:68.7.0-1 | thunderbird_1:68.7.0-1_all.deb |
| Debian | 11 | all | thunderbird | < 1:68.7.0-1 | thunderbird_1:68.7.0-1_all.deb |
| Debian | 10 | all | thunderbird | < 1:68.7.0-1~deb10u1 | thunderbird_1:68.7.0-1~deb10u1_all.deb |
| Debian | 999 | all | thunderbird | < 1:68.7.0-1 | thunderbird_1:68.7.0-1_all.deb |
Related
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.024 Low
EPSS
Percentile
89.7%