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CVE-2019-14875

Published: 19 March 2020

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 in case of a memory allocation failure.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
gcc-snapshot
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Ignored
(end of life, was needs-triage)
jammy Ignored
(end of life, was needs-triage)
lunar Not vulnerable
(code not present)
mantic Not vulnerable
(code not present)
noble Not vulnerable
(code not present)
trusty Ignored
(end of standard support)
upstream Not vulnerable
(code not present)
xenial Not vulnerable
(code not present)
newlib
Launchpad, Ubuntu, Debian
bionic Needed

eoan Ignored
(end of life)
focal Ignored
(end of life, was needs-triage)
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
impish Ignored
(end of life)
jammy Ignored
(end of life, was needs-triage)
kinetic Ignored
(end of life, was needs-triage)
lunar Not vulnerable
(3.3.0-1.3)
mantic Not vulnerable
(3.3.0-1.3)
noble Not vulnerable
(3.3.0-1.3)
trusty Does not exist

upstream
Released (3.3.0)
xenial Needed

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H