Description
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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
Affected products
- debian / debian_linux8.0 – 8.0
- excon / excon< 0.71.0 – 0.71.0
- excon_project / excon0.71.0
- openSUSE / backports_sle15.0 – 15.0
- openSUSE / Leap15.1 – 15.1
References
- VENDOR_ADVISORYhttps://github.com/excon/excon/security/advisories/GHSA-q58g-455p-8vw9
- PATCHhttps://github.com/excon/excon/commit/ccb57d7a422f020dc74f1de4e8fb505ab46d8a29
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-01/msg00021.html
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2020/01/msg00015.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-01/msg00062.html
Updated 5m ago · 8 sources