CVE-2019-14877

6.5MEDIUM

Key Information:

Vendor
Red Hat
Status
Newlib
Vendor
CVE Published:
19 March 2020

Summary

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.

Affected Version(s)

newlib all newlib versions prior to 3.3.0

References

https://census-labs.com/news/2020/01/31/multiple-null-poi...
x_refsource_CONFIRM

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.