CVE-2019-14877
6.5
MEDIUM
CVSS 3.1
EPSS 0.31%
Description
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 dereference bug in case of a memory allocation failure.
How to fix CVE-2019-14877
To remediate CVE-2019-14877, upgrade the affected package to a fixed version below.
- —upgrade to 3.3.0-1 or later
- —upgrade to 1.4.3-1 or later
Is CVE-2019-14877 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.3.0-1
- from 0, < 1.4.3-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |