Out-of-bounds write in etcd - CVE-2022-34038
Published: June 20, 2024
Vulnerability identifier: #VU92385
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-34038
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: etcd-io
Affected software:
etcd
etcd
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the PageWriter.write() method in pagewriter.go. A remote attacker can create a specially crafted input to the application, trigger an out-of-bounds write and perform a denial of service (DoS) attack.
How to mitigate CVE-2022-34038
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..
Sources
- https://github.com/etcd-io/etcd/pull/14022
- https://github.com/etcd-io/etcd/pull/14452
- https://go-review.googlesource.com/c/vulndb/+/524456/2/data/excluded/GO-2023-2016.yaml
- https://github.com/golang/vulndb/issues/2016#issuecomment-1698677762
- https://go-review.googlesource.com/c/vulndb/+/524456
- https://github.com/advisories/GHSA-65rp-cv85-263x