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CVE-2018-20457

Published: 25 December 2018

In radare2 through 3.1.3, the assemble function inside libr/asm/p/asm_arm_cs.c allows attackers to cause a denial-of-service (application crash via an r_num_calc out-of-bounds read) by crafting an arm assembly input because a loop uses an incorrect index in armass.c and certain length validation is missing in armass64.c, a related issue to CVE-2018-20459.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
radare2
Launchpad, Ubuntu, Debian
bionic Needs triage

cosmic Ignored
(end of life)
disco Not vulnerable
(3.2.1+dfsg-5build1)
eoan Not vulnerable
(3.2.1+dfsg-5build1)
focal Not vulnerable
(3.2.1+dfsg-5build1)
groovy Not vulnerable
(3.2.1+dfsg-5build1)
hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Ignored
(end of life, was needs-triage)
mantic Needs triage

trusty Does not exist
(trusty was needs-triage)
upstream Needs triage

xenial Needs triage

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H