CVE-2017-15804
CriticalSummary
The glob function in the GNU C Library (glibc) before version 2.27 contains a buffer overflow during unescaping of user names with the ~ operator.
Risk Assessment
Exploitation of this vulnerability may lead to arbitrary code execution, posing a significant security risk to the system.
Recommendation
It is recommended to update the glibc library to version 2.27 or later to mitigate this vulnerability.
Other vulnerabilities in GNU C Library (glibc)
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In the GNU C Library (glibc) versions 2.19 through 2.26, there is a flaw in handling RPATH and RUNPATH containing $ORIGIN for privileged (setuid or AT_SECURE) programs. This allows local users to gain privileges via a Trojan horse library in the current working directory.
- CVE-2017-8804High
The xdr_bytes and xdr_string functions in the GNU C Library (glibc) version 2.25 mishandle buffer deserialization failures, allowing remote attackers to cause a denial of service via a crafted UDP packet to port 111.
- CVE-2015-8983High
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.
- CVE-2016-5417High
A memory leak in the __res_vinit function in the IPv6 name server management code in GNU C Library (glibc) before version 2.24 allows remote attackers to cause a denial of service by leveraging partial initialization of internal resolver data structures.
- CVE-2016-6323High
The makecontext function in the GNU C Library (glibc) before version 2.25 creates execution contexts incompatible with the unwinder on ARM EABI (32-bit) platforms. This may allow context-dependent attackers to cause a denial of service (hang), as demonstrated by applications compiled using gccgo, related to backtrace generation.
- CVE-2016-3706High
A stack-based buffer overflow in the getaddrinfo function in the GNU C Library (glibc) allows remote attackers to cause a denial of service (crash) via vectors involving hostent conversion.
- CVE-2016-3075High
A stack-based buffer overflow exists in the nss_dns implementation of the getnetbyname function in GNU C Library (glibc) before version 2.24. Attackers can exploit this vulnerability by providing a long name, leading to application crashes.
- CVE-2016-1234High
A stack-based buffer overflow in the glob implementation in GNU C Library (glibc) before version 2.24 can be exploited by context-dependent attackers. This allows them to cause a denial of service (crash) by providing a long name.
- CVE-2015-7547High
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.
- CVE-2015-5277High
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.
Original NVD description (English source)
The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator.