critical
9.8
CWE
22
Advisory Published
CVE Published
Updated

CVE-2023-49569: Maliciously crafted Git server replies can lead to path traversal and RCE on go-git clients

First published: Wed Jan 10 2024(Updated: )

### Impact A path traversal vulnerability was discovered in go-git versions prior to `v5.11`. This vulnerability allows an attacker to create and amend files across the filesystem. In the worse case scenario, remote code execution could be achieved. Applications are only affected if they are using the [ChrootOS](https://pkg.go.dev/github.com/go-git/go-billy/v5/osfs#ChrootOS), which is the default when using "Plain" versions of Open and Clone funcs (e.g. PlainClone). Applications using [BoundOS](https://pkg.go.dev/github.com/go-git/go-billy/v5/osfs#BoundOS) or in-memory filesystems are not affected by this issue. 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 `v5.11` in order to mitigate this vulnerability. ### Workarounds In cases where a bump to the latest version of `go-git` is not possible in a timely manner, we recommend limiting its use to only trust-worthy Git servers. ## Credit Thanks to Ionut Lalu for responsibly disclosing this vulnerability to us.

Credit: cve-requests@bitdefender.com cve-requests@bitdefender.com

Affected SoftwareAffected VersionHow to fix
Go-git Project Go-git>=4.0.0<5.11.0
go/gopkg.in/src-d/go-git.v4>=4.7.1
go/github.com/go-git/go-git/v5>=5.0.0<5.11.0
5.11.0
go/github.com/go-git/go-git/v4>=4.0.0<=4.13.1
redhat/go-git<5.11
5.11
IBM IBM® Db2® on Cloud Pak for Data and Db2 Warehouse on Cloud Pak for Data<=v3.5 through refresh 10v4.0 through refresh 9v4.5 through refresh 3v4.6 through refresh 6v4.7 through refresh 4v4.8 through refresh 4

Remedy

An update to version 5.11 fixes the issue

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