CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
Percentile
88.2%
Severity: High
Date : 2021-03-25
CVE-ID : CVE-2021-3405
Package : libebml
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-1554
The package libebml before version 1.4.2-1 is vulnerable to arbitrary
code execution.
Upgrade to 1.4.2-1.
The problem has been fixed upstream in version 1.4.2.
None.
A security issue was found in libebml before version 1.4.2. A heap
overflow bug exists in the implementation of EbmlString::ReadData and
EbmlUnicodeString::ReadData in libebml.
A crafted file could execute arbitrary code.
https://bugs.archlinux.org/task/70039
https://bugzilla.redhat.com/show_bug.cgi?id=1926990
https://github.com/Matroska-Org/libebml/issues/74
https://github.com/Matroska-Org/libebml/pull/76
https://github.com/Matroska-Org/libebml/commit/3d3d2cff9b012059fa7cb536399b582cc796e04f
https://security.archlinux.org/CVE-2021-3405
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
Percentile
88.2%