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- CPE Product Version: cpe:/a:gnu:gcc:4.9.4
Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2023-4039 |
**DISPUTED**A failure in the -fstack-protector feature in GCC-based toolchains that target AArch64 allows an attacker to exploit an existing buffer overflow in dynamically-sized local variables in your application without this being detected. This stack-protector failure only applies to C99-style dynamically-sized local variables or those created using alloca(). The stack-protector operates as intended for statically-sized local variables. The default behavior when the stack-protector detects an overflow is to terminate your application, resulting in controlled loss of availability. An attacker who can exploit a buffer overflow without triggering the stack-protector might be able to change program flow control to cause an uncontrolled loss of availability or to go further and affect confidentiality or integrity. NOTE: The GCC project argues that this is a missed hardening bug and not a vulnerability by itself. Published: September 13, 2023; 5:15:15 AM -0400 |
V3.1: 4.8 MEDIUM V2.0:(not available) |
CVE-2021-37322 |
GCC c++filt v2.26 was discovered to contain a use-after-free vulnerability via the component cplus-dem.c. Published: November 18, 2021; 5:15:07 PM -0500 |
V3.1: 7.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2019-15847 |
The POWER9 backend in GNU Compiler Collection (GCC) before version 10 could optimize multiple calls of the __builtin_darn intrinsic into a single call, thus reducing the entropy of the random number generator. This occurred because a volatile operation was not specified. For example, within a single execution of a program, the output of every __builtin_darn() call may be the same. Published: September 02, 2019; 7:15:10 PM -0400 |
V3.1: 7.5 HIGH V2.0: 5.0 MEDIUM |
CVE-2018-12886 |
stack_protect_prologue in cfgexpand.c and stack_protect_epilogue in function.c in GNU Compiler Collection (GCC) 4.1 through 8 (under certain circumstances) generate instruction sequences when targeting ARM targets that spill the address of the stack protector guard, which allows an attacker to bypass the protection of -fstack-protector, -fstack-protector-all, -fstack-protector-strong, and -fstack-protector-explicit against stack overflow by controlling what the stack canary is compared against. Published: May 22, 2019; 3:29:00 PM -0400 |
V3.0: 8.1 HIGH V2.0: 6.8 MEDIUM |