CVE-2025-15281— wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory
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I. Basic Information for CVE-2025-15281
Vulnerability Information
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Vulnerability Title
wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory
Source: NVD (National Vulnerability Database)
Vulnerability Description
Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对未经初始化资源的使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
GNU C Library 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU C Library是GNU社区的一种按照LGPL许可协议发布的开源免费的C语言编译程序。 GNU C Library 2.0版本至2.42版本存在安全漏洞，该漏洞源于调用wordexp时可能返回未初始化内存，可能导致进程中止。
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 | 2.0 ~ 2.42 | - |
II. Public POCs for CVE-2025-15281
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IV. Related Vulnerabilities
Same product: glibc
- CVE-2026-6238
Buffer overread in ns_printrrf with corrupted RDATA field - CVE-2026-5435
Potential buffer overflow in ns_sprintrrf TSIG handling path - CVE-2026-5450
scanf %mc off-by-one heap buffer overflow - CVE-2026-5928
Potential buffer under-read in ungetwc - CVE-2026-4046
iconv crash due to assertion failure with untrusted input
Same vendor: The GNU C Library
- CVE-2026-6238
Buffer overread in ns_printrrf with corrupted RDATA field - CVE-2026-5435
Potential buffer overflow in ns_sprintrrf TSIG handling path - CVE-2026-5450
scanf %mc off-by-one heap buffer overflow - CVE-2026-5928
Potential buffer under-read in ungetwc - CVE-2026-4046
iconv crash due to assertion failure with untrusted input
Same weakness: CWE-908
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V. Comments for CVE-2025-15281
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