Distribution advisory
This page covers CVE-2024-21733 as tracked by Ubuntu, for the package tomcat6. The fix is available in version 8.5.39-1ubuntu1~18.04.3+esm5; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: None — an unauthenticated stranger can try it.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
- Integrity impact: None.
- Availability impact: None.
Weakness class
UBUNTU-CVE-2024-21733 is classified as CWE-209: Information Exposure Through an Error Message. Error output includes internal detail such as paths, queries or stack traces that assists an attacker.
Affected software
UBUNTU-CVE-2024-21733 is recorded against 3 packages.
- tomcat6
- tomcat8 (fixed in 8.5.39-1ubuntu1~18.04.3+esm5)
- tomcat9 (fixed in 9.0.31-1ubuntu0.9+esm2)
Timeline and source
Published on 19 January 2024 and last revised on 4 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
www.openwall.com (Report)
github.com (Report)
lists.apache.org (Report)
www.openwall.com (Report)
www.cve.org (Report)
ubuntu.com (Advisory)
Other advisories for this package
tomcat6 has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-209: Information Exposure Through an Error Message) in other software:
