Vulnerability Name:

CVE-2018-19755 (CCN-153563)

Assigned:2018-11-13
Published:2018-11-13
Updated:2018-12-21
Summary:There is an illegal address access at asm/preproc.c (function: is_mmacro) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service (out-of-bounds array access) because a certain conversion can result in a negative integer.
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-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-19755

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://bugzilla.nasm.us/show_bug.cgi?id=3392528

Source: XF
Type: UNKNOWN
nasm-cve201819755-dos(153563)

Source: CCN
Type: nasm GIT Repository
preproc: Fix malformed parameter count

Source: MISC
Type: Exploit, Third Party Advisory
https://repo.or.cz/nasm.git/commit/3079f7966dbed4497e36d5067cbfd896a90358cb

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-19755

Vulnerable Configuration:Configuration 1:
  • cpe:/a:nasm:netwide_assembler:12.14:rc16:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2018197550000000
    V
    		CVE-2018-19755 on Ubuntu 19.04 (disco) - negligible.
    2018-11-30
    oval:com.ubuntu.bionic:def:2018197550000000
    V
    		CVE-2018-19755 on Ubuntu 18.04 LTS (bionic) - negligible.
    2018-11-30
    oval:com.ubuntu.xenial:def:2018197550000000
    V
    		CVE-2018-19755 on Ubuntu 16.04 LTS (xenial) - negligible.
    2018-11-30
    oval:com.ubuntu.bionic:def:201819755000
    V
    		CVE-2018-19755 on Ubuntu 18.04 LTS (bionic) - negligible.
    2018-11-29
    oval:com.ubuntu.cosmic:def:2018197550000000
    V
    		CVE-2018-19755 on Ubuntu 18.10 (cosmic) - negligible.
    2018-11-29
    oval:com.ubuntu.cosmic:def:201819755000
    V
    		CVE-2018-19755 on Ubuntu 18.10 (cosmic) - negligible.
    2018-11-29
    oval:com.ubuntu.trusty:def:201819755000
    V
    		CVE-2018-19755 on Ubuntu 14.04 LTS (trusty) - negligible.
    2018-11-29
    oval:com.ubuntu.xenial:def:201819755000
    V
    		CVE-2018-19755 on Ubuntu 16.04 LTS (xenial) - negligible.
    2018-11-29
    BACK
    nasm netwide assembler 12.14 rc16