Ubuntu.comUB:CVE-2021-21704CVE-2021-21704
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access 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
0.004 Low
EPSS
Percentile
72.6%
In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below
8.0.8, when using Firebird PDO driver extension, a malicious database
server could cause crashes in various database functions, such as
getAttribute(), execute(), fetch() and others by returning invalid response
data that is not parsed correctly by the driver. This can result in
crashes, denial of service or potentially memory corruption.
Bugs
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 14.04 | noarch | php5 | < 5.5.9+dfsg-1ubuntu4.29+esm14) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 16.04 | noarch | php7.0 | < 7.0.33-0ubuntu0.16.04.16+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 18.04 | noarch | php7.2 | < 7.2.24-0ubuntu0.18.04.8 | UNKNOWN |
| ubuntu | 20.04 | noarch | php7.4 | < 7.4.3-4ubuntu2.5 | UNKNOWN |
| ubuntu | 20.10 | noarch | php7.4 | < 7.4.9-1ubuntu1.2 | UNKNOWN |
| ubuntu | 21.04 | noarch | php7.4 | < 7.4.16-1ubuntu2.1 | UNKNOWN |
| ubuntu | 21.10 | noarch | php8.0 | < 8.0.8-1 | UNKNOWN |
Related
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access 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
0.004 Low
EPSS
Percentile
72.6%