newlib project newlib vulnerabilities and exploits

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6.5

CVSSv3

The _dtoa_r function of the newlib libc library, prior to version 3.3.0, performs multiple memory allocations without checking their return value. This could result in NULL pointer dereference.

Newlib Project Newlib

6.5

CVSSv3

In the __multadd function of the newlib libc library, prior to versions 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the allocation succeeded or not. This will trigger a null pointer dereference bug i...

Newlib Project Newlib

6.5

CVSSv3

In the __multiply function of the newlib libc library, all versions before 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the allocation succeeded or not. The access of _x[0] will trigger a null pointer...

Newlib Project Newlib

6.5

CVSSv3

In the __lshift function of the newlib libc library, all versions before 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the allocation succeeded or not. The access to b1 will trigger a null pointer dere...

Newlib Project Newlib

6.5

CVSSv3

In the __d2b function of the newlib libc library, all versions before 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the allocation succeeded or not. Accessing _x will trigger a null pointer dereference...

Newlib Project Newlib

4 Github repositories

6.5

CVSSv3

In the __i2b function of the newlib libc library, all versions before 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the allocation succeeded or not. The access of _ x[0] will trigger a null pointer der...

Newlib Project Newlib

6.5

CVSSv3

The REENT_CHECK macro (see newlib/libc/include/sys/reent.h) as used by REENT_CHECK_TM, REENT_CHECK_MISC, REENT_CHECK_MP and other newlib macros in versions before 3.3.0, does not check for memory allocation problems when the DEBUG flag is unset (as is the case in production firmw...

Newlib Project Newlib

4 Github repositories

6.5

CVSSv3

In the __mdiff function of the newlib libc library, all versions before 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate big integers, however no check is performed to verify if the allocation succeeded or not. The access to _wds and _sign will trigger a null po...

Newlib Project Newlib

9.8

CVSSv3

A flaw was found in newlib in versions before 4.0.0. Improper overflow validation in the memory allocation functions mEMALIGn, pvALLOc, nano_memalign, nano_valloc, nano_pvalloc could case an integer overflow, leading to an allocation of a small buffer and then to a heap-based buf...

Newlib Project Newlib Fedoraproject Fedora 32 Fedoraproject Fedora 33 Fedoraproject Fedora 34

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