CVE-2019-14876

2020-03-1915:08:25

CWE-476

redhat

www.cve.org

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

44.7%

JSON

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 case of a memory allocation failure.

CNA Affected

[
  {
    "product": "newlib",
    "vendor": "Red Hat",
    "versions": [
      {
        "status": "affected",
        "version": "all newlib versions prior to 3.3.0"
      }
    ]
  }
]