CVE-2020-1935

In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.
HTTP Request/Response Smuggling
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.8 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
apacheCNA
---
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CVEADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 76%
VendorProductVersion
apachetomcat
7.0.0 ≤
𝑥
≤ 7.0.99
apachetomcat
8.5.0 ≤
𝑥
≤ 8.5.50
apachetomcat
9.0.0 ≤
𝑥
≤ 9.0.30
apachetomcat
9.0.0
apachetomcat
9.0.0:milestone1
apachetomcat
9.0.0:milestone10
apachetomcat
9.0.0:milestone11
apachetomcat
9.0.0:milestone12
apachetomcat
9.0.0:milestone13
apachetomcat
9.0.0:milestone14
apachetomcat
9.0.0:milestone15
apachetomcat
9.0.0:milestone16
apachetomcat
9.0.0:milestone17
apachetomcat
9.0.0:milestone18
apachetomcat
9.0.0:milestone19
apachetomcat
9.0.0:milestone2
apachetomcat
9.0.0:milestone20
apachetomcat
9.0.0:milestone21
apachetomcat
9.0.0:milestone22
apachetomcat
9.0.0:milestone23
apachetomcat
9.0.0:milestone24
apachetomcat
9.0.0:milestone25
apachetomcat
9.0.0:milestone26
apachetomcat
9.0.0:milestone27
apachetomcat
9.0.0:milestone3
apachetomcat
9.0.0:milestone4
apachetomcat
9.0.0:milestone5
apachetomcat
9.0.0:milestone6
apachetomcat
9.0.0:milestone7
apachetomcat
9.0.0:milestone8
apachetomcat
9.0.0:milestone9
debiandebian_linux
8.0
debiandebian_linux
9.0
debiandebian_linux
10.0
canonicalubuntu_linux
16.04
opensuseleap
15.1
netappdata_availability_services
-
netapponcommand_system_manager
3.0.0 ≤
𝑥
≤ 3.1.3
oracleagile_engineering_data_management
6.2.1.0
oracleagile_product_lifecycle_management
9.3.3
oracleagile_product_lifecycle_management
9.3.5
oracleagile_product_lifecycle_management
9.3.6
oraclecommunications_element_manager
8.1.1
oraclecommunications_element_manager
8.2.0
oraclecommunications_element_manager
8.2.1
oraclecommunications_instant_messaging_server
10.0.1.4.0
oraclehealth_sciences_empirica_inspections
1.0.1.2
oraclehealth_sciences_empirica_signal
7.3.3
oraclehospitality_guest_access
4.2.0
oraclehospitality_guest_access
4.2.1
oraclehyperion_infrastructure_technology
11.1.2.4
oracleinstantis_enterprisetrack
17.1 ≤
𝑥
≤ 17.3
oraclemysql_enterprise_monitor
4.0.0 ≤
𝑥
≤ 4.0.12
oraclemysql_enterprise_monitor
8.0.0 ≤
𝑥
≤ 8.0.20
oracleretail_order_broker
15.0
oraclesiebel_ui_framework
𝑥
≤ 20.5
oracletransportation_management
6.3.7
oracleworkload_manager
12.2.0.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
tomcat9
bullseye (security)
9.0.43-2~deb11u10
fixed
bullseye
9.0.43-2~deb11u10
fixed
stretch
ignored
bookworm
9.0.70-2
fixed
sid
9.0.95-1
fixed
trixie
9.0.95-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
tomcat7
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
bionic
needs-triage
xenial
needs-triage
trusty
needs-triage
tomcat8
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
bionic
needs-triage
xenial
Fixed 8.0.32-1ubuntu1.13
released
trusty
dne
tomcat9
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
not-affected
eoan
ignored
bionic
needs-triage
xenial
dne
trusty
dne
References