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Newlib Security Vulnerabilities

cve
cve

CVE-2021-3420

A flaw was found in newlib in versions prior to 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 buffer...

9.8CVSS

9.3AI Score

0.006EPSS

2021-03-05 09:15 PM
116
11
cve
cve

CVE-2019-14878

In the __d2b function of the newlib libc library, all versions prior to 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 bug in case of.....

6.5CVSS

6.3AI Score

0.001EPSS

2020-03-19 04:15 PM
25
cve
cve

CVE-2019-14877

In the __mdiff function of the newlib libc library, all versions prior to 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 pointer...

6.5CVSS

6.3AI Score

0.001EPSS

2020-03-19 04:15 PM
28
cve
cve

CVE-2019-14876

In the __lshift function of the newlib libc library, all versions prior to 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 dereference bug in...

6.5CVSS

6.3AI Score

0.001EPSS

2020-03-19 04:15 PM
31
cve
cve

CVE-2019-14874

In the __i2b function of the newlib libc library, all versions prior to 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 dereference bug in.....

6.5CVSS

6.3AI Score

0.001EPSS

2020-03-19 04:15 PM
29
cve
cve

CVE-2019-14875

In the __multiply function of the newlib libc library, all versions prior to 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 dereference bug....

6.5CVSS

6.3AI Score

0.001EPSS

2020-03-19 04:15 PM
24
cve
cve

CVE-2019-14873

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 in case of a memory....

6.5CVSS

6.3AI Score

0.001EPSS

2020-03-19 04:15 PM
23
cve
cve

CVE-2019-14872

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...

6.5CVSS

6.4AI Score

0.001EPSS

2020-03-19 01:15 PM
23
cve
cve

CVE-2019-14871

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 prior to 3.3.0, does not check for memory allocation problems when the DEBUG flag is unset (as is the case in production firmware...

6.5CVSS

6.4AI Score

0.001EPSS

2020-03-18 04:15 PM
25