cnvd - cnvd-2019-06643

cnvd-2019-06643

Vulnerability from cnvd

Title: libgit2整数溢出漏洞（CNVD-2019-06643）

Description:

libgit2是一个可移植、使用C语言实现的Git核心开发包。

libgit2 0.27.3之前版本中的delta.c文件的‘git_delta_apply’函数存在整数溢出漏洞，攻击者可利用该漏洞泄露内存地址或造成拒绝服务（越界读取）。

Severity: 中

Patch Name: libgit2整数溢出漏洞（CNVD-2019-06643）的补丁

Patch Description:

libgit2是一个可移植、使用C语言实现的Git核心开发包。

libgit2 0.27.3之前版本中的delta.c文件的‘git_delta_apply’函数存在整数溢出漏洞，攻击者可利用该漏洞泄露内存地址或造成拒绝服务（越界读取）。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/libgit2/libgit2/commit/3f461902dc1072acb8b7607ee65d0a0458ffac2a

Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-10887

Impacted products

Name
libgit2 libgit2 <0.27.3

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-10887"
    }
  },
  "description": "libgit2\u662f\u4e00\u4e2a\u53ef\u79fb\u690d\u3001\u4f7f\u7528C\u8bed\u8a00\u5b9e\u73b0\u7684Git\u6838\u5fc3\u5f00\u53d1\u5305\u3002\n\nlibgit2 0.27.3\u4e4b\u524d\u7248\u672c\u4e2d\u7684delta.c\u6587\u4ef6\u7684\u2018git_delta_apply\u2019\u51fd\u6570\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6cc4\u9732\u5185\u5b58\u5730\u5740\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u754c\u8bfb\u53d6\uff09\u3002",
  "discovererName": "Riccardo Schirone",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/libgit2/libgit2/commit/3f461902dc1072acb8b7607ee65d0a0458ffac2a",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-06643",
  "openTime": "2019-03-09",
  "patchDescription": "libgit2\u662f\u4e00\u4e2a\u53ef\u79fb\u690d\u3001\u4f7f\u7528C\u8bed\u8a00\u5b9e\u73b0\u7684Git\u6838\u5fc3\u5f00\u53d1\u5305\u3002\r\n\r\nlibgit2 0.27.3\u4e4b\u524d\u7248\u672c\u4e2d\u7684delta.c\u6587\u4ef6\u7684\u2018git_delta_apply\u2019\u51fd\u6570\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6cc4\u9732\u5185\u5b58\u5730\u5740\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u754c\u8bfb\u53d6\uff09\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "libgit2\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2019-06643\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "libgit2 libgit2 \u003c0.27.3"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-10887",
  "serverity": "\u4e2d",
  "submitTime": "2018-07-11",
  "title": "libgit2\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2019-06643\uff09"
}

CVE-2018-10887 (GCVE-0-2018-10887)

Vulnerability from cvelistv5

Published

2018-07-10 14:00

Modified

2024-09-17 01:06

Severity ?

CWE

CWE-194 - ->CWE-190->CWE-125

Summary

A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker may use this flaw to leak memory addresses or cause a Denial of Service.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1598021	x_refsource_CONFIRM
	https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html	mailing-list, x_refsource_MLIST
	https://github.com/libgit2/libgit2/releases/tag/v0.27.3	x_refsource_CONFIRM
	https://github.com/libgit2/libgit2/commit/c1577110467b701dcbcf9439ac225ea851b47d22	x_refsource_CONFIRM
	https://github.com/libgit2/libgit2/commit/3f461902dc1072acb8b7607ee65d0a0458ffac2a	x_refsource_CONFIRM
	https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	libgit2	libgit2	Version: before version 0.27.3

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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