Detections
Analytics

CVE-2018-12541

medium

Description

In version from 3.0.0 to 3.5.3 of Eclipse Vert.x, the WebSocket HTTP upgrade implementation buffers the full http request before doing the handshake, holding the entire request body in memory. There should be a reasonnable limit (8192 bytes) above which the WebSocket gets an HTTP response with the 413 status code and the connection gets closed.

References

https://github.com/eclipse-vertx/vert.x/issues/2648

https://access.redhat.com/errata/RHSA-2018:2946

https://lists.apache.org/thread.html/reb3cc4f3e10264896a541813c0030ec9d9466ba9b722fe5d4adc91cd%40%3Cissues.bookkeeper.apache.org%3E

https://lists.apache.org/thread.html/re5ddabee26fbcadc7254d03a5a073d64080a9389adc9e452529664ed%40%3Ccommits.pulsar.apache.org%3E

https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E

https://lists.apache.org/thread.html/rbdc279ecdb7ac496a03befb05a53605c4ce2b67e14f8f4df4cfa1203%40%3Cissues.bookkeeper.apache.org%3E

https://lists.apache.org/thread.html/r98dc06e2b1c498d0e9eb5038d8e1aefd24e411e50522e7082dd9e0b7%40%3Ccommits.bookkeeper.apache.org%3E

https://lists.apache.org/thread.html/r8db0431ecf93f2dd2128db5ddca897b33ba883b7f126648d6a9e4c47%40%3Ccommits.pulsar.apache.org%3E

https://lists.apache.org/thread.html/r79789a0afb184abd13a2c07016e6e7ab8e64331f332b630bf82a2eed%40%3Ccommits.pulsar.apache.org%3E

https://lists.apache.org/thread.html/r3da899890536af744dec897fbc561fd9810ac45e79a16164b53c31b2%40%3Ccommits.pulsar.apache.org%3E

https://lists.apache.org/thread.html/r362835e6c7f34324ed24e318b363fcdd20cea91d0cea0b2e1164f73e%40%3Cissues.bookkeeper.apache.org%3E

https://lists.apache.org/thread.html/r344235b1aea2f7fa2381495df1d77d02b595e3d7e4626e701f7c1062%40%3Ccommits.pulsar.apache.org%3E

https://lists.apache.org/thread.html/r1af71105539fe01fcecb92d2ecd8eea56c515fb1c80ecab4df424553%40%3Cissues.bookkeeper.apache.org%3E

https://lists.apache.org/thread.html/r11789cd6d67ecca2d6f6bbb11e34495e68ee99287b6c59edf5b1a09c%40%3Ccommits.pulsar.apache.org%3E

https://lists.apache.org/thread.html/r01123837ffbfdf5809e0a4ac354ad546e4ca8f18df89ee5a10eeb81b%40%3Cissues.bookkeeper.apache.org%3E

https://bugs.eclipse.org/bugs/show_bug.cgi?id=539170

Details

Source: Mitre, NVD

Published: 2018-10-10

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.01062