VDB
RHSA-2020%3A3305
RHSA-2020%3A3305
PUBLISHED
CVSS 4.300000190734863 MEDIUM
A flaw was found in Apache Tomcat. The HTTP header parsing code used an approach to end-of-line (EOL) parsing that allowed some invalid HTTP headers to be parsed as valid. This led to the 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. The highest threat with this vulnerability is system availability.
Risk Scores
CVSS 3.1
4.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat JBoss Web Server 3.1 |
Timeline
- Aug 4, 2020 CVE Published
- May 1, 2026 Distribution Patch
- May 1, 2026 Distribution Patch
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
- May 14, 2026 CVE Updated
References
- https://access.redhat.com/errata/RHSA-2020:3305 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=webserver&downloadType=securityPatches&version=3.1 advisory
- https://access.redhat.com/documentation/en-us/red_hat_jboss_web_server/3.1/ advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1806835 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=1857024 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_3305.json advisory
- https://access.redhat.com/security/cve/CVE-2020-1935 advisory
- https://www.cve.org/CVERecord?id=CVE-2020-1935 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-1935 advisory
- https://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.100 advisory
- https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.51 advisory
- https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.31 advisory
- https://access.redhat.com/security/cve/CVE-2020-13935 advisory
- https://www.cve.org/CVERecord?id=CVE-2020-13935 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-13935 advisory
- http://mail-archives.apache.org/mod_mbox/tomcat-announce/202007.mbox/%3C39e4200c-6f4e-b85d-fe4b-a9c2bd5fdc3d%40apache.org%3E advisory
- http://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.0.0-M7 advisory
- http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.105 advisory
- http://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.57 advisory
…and 1 more