Improper input validation in Mumble
CVE-2018-20743
murmur in Mumble through 1.2.19 before 2018-08-31 mishandles multiple concurrent requests that are persisted in the database, which allows remote attackers to cause a denial of service (daemon hang or crash) via a message flood.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.036 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000
Affected products
- Mumble
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- bugs.debian.org/919249 (Mailing List, Third Party Advisory, Issue Tracking)
- www.debian.org/security/2019/dsa-4402 (vendor-advisory, Third Party Advisory)
- github.com/mumble-voip/mumble/pull/3510 (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/02/msg00006.html (mailing-list, Third Party Advisory)
- github.com/mumble-voip/mumble/issues/3505 (Patch, Third Party Advisory)
- github.com/mumble-voip/mumble/pull/3512 (Patch, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00045.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00023.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00058.html (vendor-advisory)
Frequently asked questions
- What is CVE-2018-20743?
- CVE-2018-20743 is a high-severity vulnerability in Mumble, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-01-25.
- How severe is CVE-2018-20743?
- High severity. CVSS v3 base score is 7.5 out of 10.