CVE-2021-21704

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
phpCNA
5 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 34%
VendorProductVersion
phpphp
7.3.0 ≤
𝑥
< 7.3.29
phpphp
7.4.0 ≤
𝑥
< 7.4.21
phpphp
8.0.0 ≤
𝑥
< 8.0.8
netappclustered_data_ontap
-
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
php7.4
bullseye
7.4.33-1+deb11u5
fixed
bullseye (security)
7.4.33-1+deb11u6
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
php5
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
bionic
dne
xenial
dne
trusty
Fixed 5.5.9+dfsg-1ubuntu4.29+esm14
released
php7.0
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
bionic
dne
xenial
Fixed 7.0.33-0ubuntu0.16.04.16+esm1
released
trusty
dne
php7.2
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
bionic
Fixed 7.2.24-0ubuntu0.18.04.8
released
xenial
dne
trusty
dne
php7.4
jammy
dne
impish
dne
hirsute
Fixed 7.4.16-1ubuntu2.1
released
groovy
Fixed 7.4.9-1ubuntu1.2
released
focal
Fixed 7.4.3-4ubuntu2.5
released
bionic
dne
xenial
dne
trusty
dne
php8.0
jammy
dne
impish
Fixed 8.0.8-1
released
hirsute
dne
groovy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
php8.1
jammy
not-affected
impish
dne
hirsute
dne
groovy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne