Vulnerability Name:

CVE-2019-7309 (CCN-156553)

Assigned:2019-02-02
Published:2019-02-02
Updated:2020-08-24
Summary:In the GNU C Library (aka glibc or libc6) through 2.29, the memcmp function for the x32 architecture can incorrectly return zero (indicating that the inputs are equal) because the RDX most significant bit is mishandled.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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): Low
User Interaction (UI): None
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:L/A:N)
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:L/A:N/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): Low
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
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:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2019-7309

Source: BID
Type: Third Party Advisory, VDB Entry
106835

Source: XF
Type: UNKNOWN
gnuc-cve20197309-weak-security(156553)

Source: GENTOO
Type: UNKNOWN
GLSA-202006-04

Source: CCN
Type: Sourceware Bugzilla – Bug 24155
x32 memcmp can treat positive length as 0 (if sign bit in RDX is set) (CVE-2019-7309)

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=24155

Source: MISC
Type: Mailing List, Third Party Advisory
https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html

Source: CCN
Type: GNU Web site
The GNU C Library (glibc)

Source: CCN
Type: IBM Security Bulletin 1143466 (Watson Studio Local)
Multiple Vulnerabilities in GNU C Library affects IBM Watson Studio Local

Source: CCN
Type: IBM Security Bulletin 6853463 (Robotic Process Automation for Cloud Pak)
Multiple Security Vulnerabilities may affect IBM Robotic Process Automation for Cloud Pak.

Source: CCN
Type: IBM Security Bulletin 6982841 (Netcool Operations Insight)
Netcool Operations Insight v1.6.8 addresses multiple security vulnerabilities.

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2019-7309

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gnu:glibc:*:*:*:*:*:*:x86:* (Version <= 2.29)

    • Configuration CCN 1:
  • cpe:/a:gnu:glibc:2.28:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:glibc:2.29:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:watson_studio_local:1.2.3:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:robotic_process_automation_for_cloud_pak:21.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:robotic_process_automation_for_cloud_pak:21.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:robotic_process_automation_for_cloud_pak:21.0.3:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:robotic_process_automation_for_cloud_pak:21.0.5:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:robotic_process_automation_for_cloud_pak:21.0.4:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:112305
    P
    		glibc-2.34-1.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:105828
    P
    		glibc-2.34-1.2 on GA media (Moderate)
    2021-10-01
    oval:com.ubuntu.disco:def:201973090000000
    V
    		CVE-2019-7309 on Ubuntu 19.04 (disco) - negligible.
    2019-02-03
    oval:com.ubuntu.bionic:def:201973090000000
    V
    		CVE-2019-7309 on Ubuntu 18.04 LTS (bionic) - negligible.
    2019-02-03
    oval:com.ubuntu.xenial:def:201973090000000
    V
    		CVE-2019-7309 on Ubuntu 16.04 LTS (xenial) - negligible.
    2019-02-03
    oval:com.ubuntu.bionic:def:20197309000
    V
    		CVE-2019-7309 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-02-02
    oval:com.ubuntu.cosmic:def:201973090000000
    V
    		CVE-2019-7309 on Ubuntu 18.10 (cosmic) - negligible.
    2019-02-02
    oval:com.ubuntu.cosmic:def:20197309000
    V
    		CVE-2019-7309 on Ubuntu 18.10 (cosmic) - medium.
    2019-02-02
    oval:com.ubuntu.trusty:def:20197309000
    V
    		CVE-2019-7309 on Ubuntu 14.04 LTS (trusty) - medium.
    2019-02-02
    oval:com.ubuntu.xenial:def:20197309000
    V
    		CVE-2019-7309 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-02-02
    BACK
    gnu glibc *
    gnu glibc 2.28
    gnu glibc 2.29
    ibm watson studio local 1.2.3
    ibm robotic process automation for cloud pak 21.0.1
    ibm robotic process automation for cloud pak 21.0.2
    ibm robotic process automation for cloud pak 21.0.3
    ibm robotic process automation for cloud pak 21.0.5
    ibm robotic process automation for cloud pak 21.0.4