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CVE-2024-33602— nscd: netgroup cache assumes NSS callback uses in-buffer strings

Quick assessment

Affected
The GNU C Library glibc
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.

glibc（GNU C Library）是GNU计划所实现的C标准库。 glibc 存在安全漏洞，该漏洞源于addgetnetgrentX 中的缓冲区大小调整代码假定所有字符串指针都指向提供的缓冲区，这可能会导致内存损坏及服务崩溃。

AI Predicted 5.5 Difficulty: Hard EPSS 0.40% · P32

Affected Version Matrix 1

VendorProduct Version RangeStatus
The GNU C Library glibc 2.15< 2.40 affected
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I. Basic Information for CVE-2024-33602

Vulnerability Information
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Vulnerability Title
nscd: netgroup cache assumes NSS callback uses in-buffer strings
Source: CVE Program / CVE List V5
Vulnerability Description
nscd: netgroup cache assumes NSS callback uses in-buffer strings The Name Service Cache Daemon's (nscd) netgroup cache can corrupt memory when the NSS callback does not store all strings in the provided buffer. The flaw was introduced in glibc 2.15 when the cache was added to nscd. This vulnerability is only present in the nscd binary.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在预期范围外返回指针值
Source: CVE Program / CVE List V5
Vulnerability Title
glibc 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
glibc（GNU C Library）是GNU计划所实现的C标准库。 glibc 存在安全漏洞，该漏洞源于addgetnetgrentX 中的缓冲区大小调整代码假定所有字符串指针都指向提供的缓冲区，这可能会导致内存损坏及服务崩溃。
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
The GNU C Library glibc 2.15 ~ 2.40 -

II. Public POCs for CVE-2024-33602

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III. Intelligence Information for CVE-2024-33602

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Vendor Advisories for CVE-2024-33602 (1)

Mailing List Discussions for CVE-2024-33602 (2)

Other References for CVE-2024-33602 (1)

Same Patch Batch · The GNU C Library · 2024-05-06 · 4 CVEs total

CVE-2024-33599 nscd: Stack-based buffer overflow in netgroup cache
CVE-2024-33601 nscd: netgroup cache may terminate daemon on memory allocation failure
CVE-2024-33600 nscd: Null pointer crashes after notfound response

IV. Related Vulnerabilities

Same product: glibc
Same vendor: The GNU C Library
Same weakness: CWE-466

V. Comments for CVE-2024-33602

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