CVE-2023-49568
Description
A denial of service (DoS) vulnerability was found in the go library go-git. This issue may allow an attacker to perform denial of service attacks by providing specially crafted responses from a Git server, which can trigger resource exhaustion in go-git clients.
Statement
This problem only affects the go implementation and not the original git cli code. Applications using only in-memory filesystems are not affected by this issue. Clients should be limited to connect to only trusted git servers to reduce the risk of compromise.
Mitigation
In cases where a bump to the latest version of go-git is not possible, a recommendation to reduce the exposure of this threat is limiting its use to only trust-worthy Git servers.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | 7.5 | 7.5 |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | None | None | None |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | None | None | None |
| Integrity Impact | None | None | None |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Red Hat CVSS v3 Score Explanation
A user has to interact with the client in order for the exploitation of the denial of service to work, hence the user interaction has been marked as required in the CVSS scoring.
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