{"id":86121,"date":"2025-12-25T01:46:57","date_gmt":"2025-12-25T01:46:57","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2023-49568-denial-of-service-vulnerability-in-go-git-prior-to-v5-11","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-49568-denial-of-service-vulnerability-in-go-git-prior-to-v5-11\/","title":{"rendered":"CVE-2023-49568: Denial of Service Vulnerability in go-git Prior to v5.11<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

This report provides an in-depth analysis of a significant vulnerability identified as CVE-2023-49568. This vulnerability primarily affects applications using go-git versions prior to v5.11, making them susceptible to Denial of Service (DoS) attacks. It is crucial to understand and address this vulnerability promptly due to its potential to compromise systems and lead to data leakage.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2023-49568
\nSeverity: High, CVSS Score 7.5
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Denial of Service, potential system compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

go-git | Prior to v5.11<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability involves the ability for an attacker to provide specially crafted responses from a Git server, which triggers resource exhaustion in go-git clients. This is primarily a go-git implementation issue and does not affect the upstream git cli. Applications using only the in-memory filesystem supported by go-git are not affected by this vulnerability.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Below is a conceptual example of how an attacker might exploit this vulnerability. This pseudocode demonstrates a malicious payload sent from a Git server to a go-git client, leading to resource exhaustion.<\/p>\n

class MaliciousServer:\ndef craft_response(self):\n# Craft a response that triggers resource exhaustion in go-git clients\nresponse = {\n\"resource\": \"overload\",\n}\nreturn response\nclass VulnerableClient:\ndef process_response(self, response):\n# Processing this response leads to resource exhaustion\nprocess(response)<\/code><\/pre>\n
Please note that this is a simplified conceptual example and the actual code may vary significantly.<\/p>\n
Recommendations for Mitigation<\/strong><\/p>\n
To mitigate this vulnerability, apply the vendor patch as soon as it is available. In the interim, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview This report provides an in-depth analysis of a significant vulnerability identified as CVE-2023-49568. This vulnerability primarily affects applications using go-git versions prior to v5.11, making them susceptible to Denial of Service (DoS) attacks. It is crucial to understand and address this vulnerability promptly due to its potential to compromise systems and lead to data […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86121","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t