CVE-2020-11993

Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers.
HTTP Request/Response Smuggling
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: 97%
VendorProductVersion
apachehttp_server
2.4.20 ≤
𝑥
< 2.4.44
netappclustered_data_ontap
-
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
20.04
opensuseleap
15.1
opensuseleap
15.2
debiandebian_linux
10.0
oraclecommunications_element_manager
8.2.0 ≤
𝑥
≤ 8.2.2
oraclecommunications_session_report_manager
8.2.0 ≤
𝑥
≤ 8.2.2
oraclecommunications_session_route_manager
8.2.0 ≤
𝑥
≤ 8.2.2
oracleenterprise_manager_ops_center
12.4.0.0
oraclehyperion_infrastructure_technology
11.1.2.4
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
stretch
ignored
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
focal
Fixed 2.4.41-4ubuntu3.1
released
bionic
Fixed 2.4.29-1ubuntu4.14
released
xenial
not-affected
trusty
not-affected
References