CVE-2023-34981
High
Description
A regression in the fix for bug 66512 in Apache Tomcat 11.0.0-M5, 10.1.8, 9.0.74 and 8.5.88 meant that, if a response did not include any HTTP headers no AJP SEND_HEADERS messare woudl be sent for the response which in turn meant that at least one AJP proxy (mod_proxy_ajp) would use the response headers from the previous request leading to an information leak.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apache Tomcat
PublishedJun 21, 2023
First seenJun 21, 2023
Weakness typeCWE-732CWE-732
How to fix
Update
- org.apache.tomcat.embed:tomcat-embed-core11.0.0-M6, 10.1.9, 9.0.75 or later
- org.apache.tomcat:tomcat-coyote8.5.89 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache tomcat | 8.5.88, 9.0.74, 10.1.8, 11.0.0 | — |
| org.apache.tomcat.embed:tomcat-embed-coreMaven | 11.0.0-M5 ≤ v < 11.0.0-M6, 10.1.8 ≤ v < 10.1.9, 9.0.74 ≤ v < 9.0.75 | 11.0.0-M6, 10.1.9, 9.0.75 |
| org.apache.tomcat:tomcat-coyoteMaven | 8.5.88 ≤ v < 8.5.89 | 8.5.89 |
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