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.
EPSS: 0.014 (69.7th percentile) — read the EPSS interpretation.
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.
Affected products
- Excon — versions < 0.71.0
- Excon_project Excon
- Debian Debian_linux — versions 8.0
- Opensuse Backports_sle — versions 15.0
- Opensuse Leap — versions 15.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory, Vendor Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- security-advisories@github.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security-advisories@github.com (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
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.