CVE-2022-2879

A flaw was found in the golang package, where Reader.Read does not set a limit on the maximum size of file headers. After fixing, Reader.Read limits the maximum size of header blocks to 1 MiB. This flaw allows a maliciously crafted archive to cause Read to allocate unbounded amounts of memory, potentially causing resource exhaustion or panic.

The opportunity for a Denial of Service is limited to the golang runtime. In the case of OpenShift Container Platform, this would be restricted within each individual container. There are multiple layers of guide rails (Golang’s Garbage Collector; OpenShift’s resource constraints imposed at the container and cluster levels) which would require a malicious user to continue submitting attacks for there to be any enduring impact. They would also need access to external server resources to be able to send a massive volume of requests to cause a significant impact on server operations.

This flaw additionally affects the github.com/vbatts/tar-split library and was fixed in v0.12.1.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.