Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2019-18634 First vendor Publication 2020-01-29
Vendor Cve Last vendor Modification 2020-02-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.6 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18634

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 131
Os 3

Sources (Detail)

Source Url
BUGTRAQ https://seclists.org/bugtraq/2020/Feb/2
https://seclists.org/bugtraq/2020/Feb/3
https://seclists.org/bugtraq/2020/Jan/44
CONFIRM https://security.netapp.com/advisory/ntap-20200210-0001/
https://support.apple.com/kb/HT210919
https://www.sudo.ws/alerts/pwfeedback.html
DEBIAN https://www.debian.org/security/2020/dsa-4614
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
FULLDISC http://seclists.org/fulldisclosure/2020/Jan/40
GENTOO https://security.gentoo.org/glsa/202003-12
MISC http://packetstormsecurity.com/files/156174/Slackware-Security-Advisory-sudo-...
http://packetstormsecurity.com/files/156189/Sudo-1.8.25p-Buffer-Overflow.html
https://www.sudo.ws/security.html
MLIST http://www.openwall.com/lists/oss-security/2020/01/30/6
http://www.openwall.com/lists/oss-security/2020/01/31/1
http://www.openwall.com/lists/oss-security/2020/02/05/2
http://www.openwall.com/lists/oss-security/2020/02/05/5
https://lists.debian.org/debian-lts-announce/2020/02/msg00002.html
REDHAT https://access.redhat.com/errata/RHSA-2020:0487
https://access.redhat.com/errata/RHSA-2020:0509
https://access.redhat.com/errata/RHSA-2020:0540
https://access.redhat.com/errata/RHSA-2020:0726
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00029.html
UBUNTU https://usn.ubuntu.com/4263-1/
https://usn.ubuntu.com/4263-2/

Alert History

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0
Date Informations
2020-05-23 02:27:07
  • First insertion