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…

PriorityP431medium6.5CVSS 3.1

AVNACLPRLUINSUCNINAH

EPSS

1.33%

67.9th percentile

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 case of a memory allocation failure.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
debian	newlib	< newlib 3.3.0-1 (bookworm)	newlib 3.3.0-1 (bookworm)
debian	picolibc	< newlib 3.3.0-1 (bookworm)	newlib 3.3.0-1 (bookworm)
newlib_project	newlib	< 3.3.0	3.3.0
newlib_project	newlib	>= 0 < 3.3.0-1	3.3.0-1
newlib_project	newlib	>= 0 < 3.3.0-1	3.3.0-1
newlib_project	newlib	>= 0 < 3.3.0-1	3.3.0-1
newlib_project	newlib	>= 0 < 3.3.0-1	3.3.0-1
red_hat	newlib	—	—

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P

osv6.5MEDIUM

vendor_debian6.5MEDIUM

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