CVE-2021-26690

Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
apacheCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 98%
VendorProductVersion
apachehttp_server
2.4.0 ≤
𝑥
≤ 2.4.46
debiandebian_linux
9.0
debiandebian_linux
10.0
oracleenterprise_manager_ops_center
12.4.0.0
oracleinstantis_enterprisetrack
17.1
oracleinstantis_enterprisetrack
17.2
oracleinstantis_enterprisetrack
17.3
oraclezfs_storage_appliance_kit
8.8
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
apache2
bullseye
2.4.62-1~deb11u1
fixed
bullseye (security)
2.4.62-1~deb11u2
fixed
bookworm
2.4.62-1~deb12u1
fixed
bookworm (security)
2.4.62-1~deb12u2
fixed
sid
2.4.62-3
fixed
trixie
2.4.62-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
apache2
jammy
Fixed 2.4.46-4ubuntu2
released
impish
Fixed 2.4.46-4ubuntu2
released
hirsute
Fixed 2.4.46-4ubuntu1.1
released
groovy
Fixed 2.4.46-1ubuntu1.2
released
focal
Fixed 2.4.41-4ubuntu3.3
released
bionic
Fixed 2.4.29-1ubuntu4.16
released
xenial
Fixed 2.4.18-2ubuntu3.17+esm1
released
trusty
Fixed 2.4.7-1ubuntu4.22+esm1
released
References