Input validation error in Jetty and Fedora - CVE-2018-12545
Published: March 27, 2019 / Updated: August 8, 2020
Vulnerability identifier: #VU36036
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-12545
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Eclipse
Fedoraproject
Fedoraproject
Affected software:
Jetty
Fedora
Jetty
Fedora
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In Eclipse Jetty version 9.3.x and 9.4.x, the server is vulnerable to Denial of Service conditions if a remote client sends either large SETTINGs frames container containing many settings, or many small SETTINGs frames. The vulnerability is due to the additional CPU and memory allocations required to handle changed settings.
How to mitigate CVE-2018-12545
Install update from vendor's website.
Sources
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=538096
- https://lists.apache.org/thread.html/13f5241048ec0bf966a6ddd306feaf40de5b20e1f09096b9cddeddf2@%3Ccommits.accumulo.apache.org%3E
- https://lists.apache.org/thread.html/70744fe4faba8e2fa7e50a7fc794dd03cb28dad8b21e08ee59bb1606@%3Cdevnull.infra.apache.org%3E
- https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe@%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/febc94ffec9275dcda64633e0276a1400cd318e571009e4cda9b7a79@%3Cnotifications.accumulo.apache.org%3E
- https://lists.apache.org/thread.html/ff8dcfe29377088ab655fda9d585dccd5b1f07fabd94ae84fd60a7f8@%3Ccommits.pulsar.apache.org%3E
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CIS4LALKZNLF5X5IGNGRSKERG7FY4QG6/
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html