Vulnerability Name:

CVE-2018-20459 (CCN-154783)

Assigned:2018-12-04
Published:2018-12-04
Updated:2020-10-15
Summary:In radare2 through 3.1.3, the armass_assemble function in libr/asm/arch/arm/armass.c allows attackers to cause a denial-of-service (application crash by 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-2018-20457.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-125
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-20459

Source: XF
Type: UNKNOWN
radare2-cve201820459-dos(154783)

Source: CCN
Type: radare2 GIT Repository
AddressSanitizer: heap-buffer-overflow (OOB read) at libr/asm/arch/arm/armass.c:6549 #12418

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://github.com/radare/radare2/issues/12418

Source: MISC
Type: Patch, Vendor Advisory
https://github.com/radareorg/radare2/commit/e5c14c167b0dcf0a53d76bd50bacbbcc0dfc1ae7

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-20459

Vulnerable Configuration:Configuration 1:
  • cpe:/a:radare:radare2:*:*:*:*:*:*:*:* (Version <= 3.1.3)

    • Configuration CCN 1:
  • cpe:/a:radare:radare2:3.1.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2018204590000000
    V
    		CVE-2018-20459 on Ubuntu 19.04 (disco) - medium.
    2018-12-25
    oval:com.ubuntu.bionic:def:201820459000
    V
    		CVE-2018-20459 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-12-25
    oval:com.ubuntu.cosmic:def:2018204590000000
    V
    		CVE-2018-20459 on Ubuntu 18.10 (cosmic) - medium.
    2018-12-25
    oval:com.ubuntu.cosmic:def:201820459000
    V
    		CVE-2018-20459 on Ubuntu 18.10 (cosmic) - medium.
    2018-12-25
    oval:com.ubuntu.bionic:def:2018204590000000
    V
    		CVE-2018-20459 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-12-25
    oval:com.ubuntu.trusty:def:201820459000
    V
    		CVE-2018-20459 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-12-25
    oval:com.ubuntu.xenial:def:2018204590000000
    V
    		CVE-2018-20459 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-12-25
    oval:com.ubuntu.xenial:def:201820459000
    V
    		CVE-2018-20459 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-12-25
    BACK
    radare radare2 *
    radare radare2 3.1.0