Vulnerability in Excon
CVE-2019-16779
In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave data on the socket. Subsequent requests would then read this data, returning content from the previous response. The race condition window appears to be short, and it would be difficult to purposefully exploit this.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.014 (72.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Excon — versions < 0.71.0
- Excon Project
- Debian Linux — versions 8.0
- openSUSE Backports Sle — versions 15.0
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
References
- github.com/excon/excon/security/advisories/GHSA-q58g-455p-8vw9 (Third Party Advisory, Vendor Advisory)
- github.com/excon/excon/commit/ccb57d7a422f020dc74f1de4e8fb505ab46d8a29 (Patch, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00021.html (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/01/msg00015.html (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00062.html (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-16779?
- CVE-2019-16779 is a medium-severity vulnerability in Excon, classified under CWE-664. CVSS score: 5.8/10. Published 2019-12-16.
- How severe is CVE-2019-16779?
- Medium severity. CVSS v3 base score is 5.8 out of 10.