Debian Security Bug TrackerDEBIANCVE:CVE-2021-38496CVE-2021-38496
CVSS2
Attack Vector
NETWORK
Attack 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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
65.9%
During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 999 | all | firefox | < 93.0-1 | firefox_93.0-1_all.deb |
| Debian | 12 | all | firefox-esr | < 91.2.0esr-1 | firefox-esr_91.2.0esr-1_all.deb |
| Debian | 11 | all | firefox-esr | < 78.15.0esr-1~deb11u1 | firefox-esr_78.15.0esr-1~deb11u1_all.deb |
| Debian | 999 | all | firefox-esr | < 91.2.0esr-1 | firefox-esr_91.2.0esr-1_all.deb |
| Debian | 13 | all | firefox-esr | < 91.2.0esr-1 | firefox-esr_91.2.0esr-1_all.deb |
| Debian | 12 | all | thunderbird | < 1:91.2.1-1 | thunderbird_1:91.2.1-1_all.deb |
| Debian | 11 | all | thunderbird | < 1:91.4.1-1~deb11u1 | thunderbird_1:91.4.1-1~deb11u1_all.deb |
| Debian | 999 | all | thunderbird | < 1:91.2.1-1 | thunderbird_1:91.2.1-1_all.deb |
| Debian | 13 | all | thunderbird | < 1:91.2.1-1 | thunderbird_1:91.2.1-1_all.deb |
Related
CVSS2
Attack Vector
NETWORK
Attack 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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
65.9%