GHSA-r9px-m959-cxf4
go-git clients vulnerable to DoS via maliciously crafted Git server replies
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | gopkg.in/src-d/go-git.v4 | >= 4.0.0, <= 4.13.1 | no fix listed |
| Go | github.com/go-git/go-git/v5 | < 5.13.0 | 5.13.0 |
| Go | github.com/go-git/go-git | >= 4.0.0, <= 4.13.1 | no fix listed |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
A denial of service (DoS) vulnerability was discovered in go-git versions prior to `v5.13`. This vulnerability allows an attacker to perform denial of service attacks by providing specially crafted responses from a Git server which triggers resource exhaustion in `go-git` clients.
This is a `go-git` implementation issue and does not affect the upstream `git` cli.
### Patches
Users running versions of `go-git` from `v4` and above are recommended to upgrade to `v5.13` in order to mitigate this vulnerability.
### Workarounds
In cases where a bump to the latest version of `go-git` is not possible, we recommend limiting its use to only trust-worthy Git servers.
## Credit
Thanks to Ionut Lalu for responsibly disclosing this vulnerability to us.
References
External links from the advisory. They lead to third-party sites.