Ubuntu.comUB:CVE-2021-21775CVE-2021-21775
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
65.5%
A use-after-free vulnerability exists in the way certain events are
processed for ImageLoader objects of Webkit WebKitGTK 2.30.4. A specially
crafted web page can lead to a potential information leak and further
memory corruption. In order to trigger the vulnerability, a victim must be
tricked into visiting a malicious webpage.
Notes
| Author | Note |
|---|---|
| jdstrand | webkit receives limited support. For details, see https://wiki.ubuntu.com/SecurityTeam/FAQ#webkit webkit in Ubuntu uses the JavaScriptCore (JSC) engine, not V8 |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | webkit2gtk | <Â 2.32.3-0ubuntu0.18.04.1 | UNKNOWN |
| ubuntu | 20.04 | noarch | webkit2gtk | <Â 2.32.3-0ubuntu0.20.04.1 | UNKNOWN |
| ubuntu | 21.04 | noarch | webkit2gtk | <Â 2.32.3-0ubuntu0.21.04.1 | UNKNOWN |
| ubuntu | 21.10 | noarch | webkit2gtk | <Â 2.32.3-1ubuntu1 | UNKNOWN |
| ubuntu | 22.04 | noarch | webkit2gtk | <Â 2.32.3-1ubuntu1 | UNKNOWN |
| ubuntu | 22.10 | noarch | webkit2gtk | <Â 2.32.3-1ubuntu1 | UNKNOWN |
| ubuntu | 23.04 | noarch | webkit2gtk | <Â 2.32.3-1ubuntu1 | UNKNOWN |
| ubuntu | 23.10 | noarch | webkit2gtk | <Â 2.32.3-1ubuntu1 | UNKNOWN |
| ubuntu | 24.04 | noarch | webkit2gtk | <Â 2.32.3-1ubuntu1 | UNKNOWN |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
65.5%