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CVE-2024-24577— libgit2 is vulnerable to arbitrary code execution due to heap corruption in `git_index_add`

Quick assessment

Affected
libgit2 libgit2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libgit2是一个可移植、使用C语言实现的Git核心开发包。 libgit2存在安全漏洞。攻击者利用该漏洞使用特制的“git_index_add”输入可能会导致堆损坏，从而执行任意代码。

CVSS 8.6 · High EPSS 1.55% · P75
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I. Basic Information for CVE-2024-24577

Vulnerability Information
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Vulnerability Title
libgit2 is vulnerable to arbitrary code execution due to heap corruption in `git_index_add`
Source: CVE Program / CVE List V5
Vulnerability Description
libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Using well-crafted inputs to `git_index_add` can cause heap corruption that could be leveraged for arbitrary code execution. There is an issue in the `has_dir_name` function in `src/libgit2/index.c`, which frees an entry that should not be freed. The freed entry is later used and overwritten with potentially bad actor-controlled data leading to controlled heap corruption. Depending on the application that uses libgit2, this could lead to arbitrary code execution. This issue has been patched in version 1.6.5 and 1.7.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
libgit2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libgit2是一个可移植、使用C语言实现的Git核心开发包。 libgit2存在安全漏洞。攻击者利用该漏洞使用特制的“git_index_add”输入可能会导致堆损坏，从而执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
libgit2 libgit2 < 1.6.5 -

II. Public POCs for CVE-2024-24577

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III. Intelligence Information for CVE-2024-24577

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Vendor Advisories for CVE-2024-24577 (1)

Mailing List Discussions for CVE-2024-24577 (6)

Other References for CVE-2024-24577 (2)

IV. Related Vulnerabilities

Same product: libgit2
Same vendor: libgit2
Same weakness: CWE-122

V. Comments for CVE-2024-24577

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