Vulnerability Name:

CVE-2018-20455 (CCN-154779)

Assigned:2018-12-04
Published:2018-12-04
Updated:2020-08-24
Summary:In radare2 prior to 3.1.1, the parseOperand function inside libr/asm/p/asm_x86_nz.c may allow attackers to cause a denial of service (application crash via a stack-based buffer overflow) by crafting an input file, a related issue to CVE-2018-20456.
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
3.3 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
2.9 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/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): 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
1.7 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-787
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-20455

Source: XF
Type: UNKNOWN
radare2-cve201820455-dos(154779)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/radare/radare2/commit/9b46d38dd3c4de6048a488b655c7319f845af185

Source: CCN
Type: radare2 GIT Repository
AddressSanitizer: stack-buffer-overflow at libr/asm/p/asm_x86_nz.c:4579 #12373

Source: MISC
Type: Exploit, Third Party Advisory
https://github.com/radare/radare2/issues/12373

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-20455

Vulnerable Configuration:Configuration 1:
  • cpe:/a:radare:radare2:*:*:*:*:*:*:*:* (Version < 3.1.1)

    • 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:2018204550000000
    V
    		CVE-2018-20455 on Ubuntu 19.04 (disco) - medium.
    2018-12-25
    oval:com.ubuntu.bionic:def:201820455000
    V
    		CVE-2018-20455 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-12-25
    oval:com.ubuntu.cosmic:def:2018204550000000
    V
    		CVE-2018-20455 on Ubuntu 18.10 (cosmic) - medium.
    2018-12-25
    oval:com.ubuntu.cosmic:def:201820455000
    V
    		CVE-2018-20455 on Ubuntu 18.10 (cosmic) - medium.
    2018-12-25
    oval:com.ubuntu.bionic:def:2018204550000000
    V
    		CVE-2018-20455 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-12-25
    oval:com.ubuntu.trusty:def:201820455000
    V
    		CVE-2018-20455 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-12-25
    oval:com.ubuntu.xenial:def:2018204550000000
    V
    		CVE-2018-20455 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-12-25
    oval:com.ubuntu.xenial:def:201820455000
    V
    		CVE-2018-20455 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-12-25
    BACK
    radare radare2 *
    radare radare2 3.1.0