cnvd - cnvd-2020-19539

cnvd-2020-19539

Vulnerability from cnvd

Title: Red Hat newlib libc library代码问题漏洞（CNVD-2020-19539）

Description:

Red Hat是企业开源解决方案的全球领先提供商，使用社区支持的方法来提供高性能的Linux，云，容器和Kubernetes技术。

newlib libc library 3.3.0之前版本中的‘__mdiff()’函数存在代码问题漏洞，该漏洞源于网络系统或产品的代码开发过程中存在设计或实现不当的问题。攻击者可利用该漏洞访问将触发空指针取消引用错误。

Severity: 中

Patch Name: Red Hat newlib libc library代码问题漏洞（CNVD-2020-19539）的补丁

Patch Description:

Red Hat是企业开源解决方案的全球领先提供商，使用社区支持的方法来提供高性能的Linux，云，容器和Kubernetes技术。

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:

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://www.redhat.com/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-14878

Impacted products

Name
Red Hat newlib libc library <3.3.0

Show details on source website

JSON

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CVE-2019-14878 (GCVE-0-2019-14878)

Vulnerability from cvelistv5

Published

2020-03-19 15:04

Modified

2024-08-05 00:26

Severity ?

6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-476

Summary

In the __d2b function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the allocation succeeded or not. Accessing _x will trigger a null pointer dereference bug in case of a memory allocation failure.

References

▼	URL	Tags
	https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib/	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	Red Hat	newlib	Version: all newlib versions prior to 3.3.0

Show details on NVD website

JSON

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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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