CVE-2022-43756

Impact

### Impact A denial of services (DoS) vulnerability was discovered in Wrangler Git package affecting versions up to and including `v1.0.0`. Specially crafted Git credentials can result in a denial of service (DoS) attack on an application that uses Wrangler due to the exhaustion of the available memory and CPU resources. This is caused by a lack of input validation of Git credentials before they are used, which may lead to a denial of service in some cases. This issue can be triggered when accessing both private and public Git repositories. ### Workarounds A workaround is to sanitize input passed to the Git package to remove potential unsafe and ambiguous characters. Otherwise, the best course of action is to update to a patched Wrangler version. ### Patches Patched versions include `v1.0.1` and later and the backported tags - `v0.7.4-security1`, `v0.8.5-security1` and `v0.8.11`. ### For more information If you have any questions or comments about this advisory: * Reach out to [SUSE Rancher Security team](https://github.com/rancher/rancher/security/policy) for security related inquiries. * Open an issue in [Rancher](https://github.com/rancher/rancher/issues/new/choose) or [Wrangler](https://github.com/rancher/wrangler/issues/new) repository. * Verify our [support matrix](https://www.suse.com/suse-rancher/support-matrix/all-supported-versions/) and [product support lifecycle](https://www.suse.com/lifecycle/).

Affected packages

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• GitHub advisory
• https://bugzilla.suse.com/show_bug.cgi?id=1205296
• https://github.com/advisories/GHSA-8fcj-gf77-47mg
• https://github.com/rancher/wrangler/security/advisories/GHSA-8fcj-gf77-47mg
• https://nvd.nist.gov/vuln/detail/CVE-2022-43756
• https://github.com/rancher/wrangler/commit/341018c8fef3e12867c7cb2649bd2cecac75f287
• https://github.com/rancher/rancher/security/policy
• https://pkg.go.dev/vuln/GO-2023-1515