CVE-2015-8983
HighSummary
Integer overflow in the _IO_wstr_overflow function in the GNU C Library (glibc) before version 2.22 can lead to application crashes or potentially allow arbitrary code execution. Attackers can exploit this vulnerability by manipulating size calculations in bytes, triggering a heap-based buffer overflow.
Risk Assessment
This vulnerability poses a risk of application crashes and the potential execution of malicious code, which can lead to serious security implications for the system. Organizations should be aware of potential attacks that may exploit this flaw.
Recommendation
It is recommended to update the GNU C Library to version 2.22 or later to mitigate the risks associated with this vulnerability. Additionally, monitoring applications for unusual behavior may help detect attempts to exploit this flaw.
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Multiple stack-based buffer overflows in the libresolv library in GNU C Library (glibc) before version 2.23 exist in the send_dg and send_vc functions. Remote attackers can cause a denial of service (crash) or possibly execute arbitrary code via a crafted DNS response.
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The get_contents function in the GNU C Library (glibc) before version 2.20 may allow local users to cause a denial of service (heap corruption) or gain privileges via a long line in the NSS files database.
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The nss_dns implementation of getnetbyname in GNU C Library (glibc) before version 2.21 allows remote attackers to cause a denial of service (infinite loop) by sending a positive answer while a network name is being processed.
Original NVD description (English source)
Integer overflow in the _IO_wstr_overflow function in libio/wstrops.c in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors related to computing a size in bytes, which triggers a heap-based buffer overflow.

