Executive Summary

Informations
Name CVE-2021-3156 First vendor Publication 2021-01-26
Vendor Cve Last vendor Modification 2024-02-04

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:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3156

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-193 Off-by-one Error

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1
Application 3
Application 1
Application 1
Application 1
Application 3
Application 2
Application 70
Application 1
Application 1
Os 2
Os 2

Metasploit Database

id Description
2021-01-26 Sudo Heap-Based Buffer Overflow

Sources (Detail)

http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Ov...
http://seclists.org/fulldisclosure/2024/Feb/3
http://www.openwall.com/lists/oss-security/2024/01/30/6
http://www.openwall.com/lists/oss-security/2024/01/30/8
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
Source Url
CERT-VN https://www.kb.cert.org/vuls/id/794544
CISCO https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...
CONFIRM https://kc.mcafee.com/corporate/index?page=content&id=SB10348
https://security.netapp.com/advisory/ntap-20210128-0001/
https://security.netapp.com/advisory/ntap-20210128-0002/
https://support.apple.com/kb/HT212177
https://www.sudo.ws/stable.html#1.9.5p2
https://www.synology.com/security/advisory/Synology_SA_21_02
DEBIAN https://www.debian.org/security/2021/dsa-4839
FULLDISC http://seclists.org/fulldisclosure/2021/Feb/42
http://seclists.org/fulldisclosure/2021/Jan/79
GENTOO https://security.gentoo.org/glsa/202101-33
MISC http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html
http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Es...
http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Priv...
http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Over...
https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management...
https://www.openwall.com/lists/oss-security/2021/01/26/3
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpuoct2021.html
MLIST http://www.openwall.com/lists/oss-security/2021/01/26/3
http://www.openwall.com/lists/oss-security/2021/01/27/1
http://www.openwall.com/lists/oss-security/2021/01/27/2
http://www.openwall.com/lists/oss-security/2021/02/15/1
http://www.openwall.com/lists/oss-security/2021/09/14/2
https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html
N/A https://www.oracle.com//security-alerts/cpujul2021.html

Alert History

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Date Informations
2024-02-04 13:28:06
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2024-01-31 00:27:59
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2023-11-07 21:35:57
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2022-09-03 09:27:34
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2021-10-20 17:23:16
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2021-09-27 21:23:45
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2021-09-16 17:23:27
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2021-09-15 09:23:23
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2021-08-05 01:42:59
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2021-07-21 05:23:01
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2021-05-04 14:09:27
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2021-04-22 03:14:50
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2021-03-27 00:23:06
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2021-03-26 12:38:45
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2021-02-18 21:23:36
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2021-02-05 17:22:59
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2021-02-04 21:23:09
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2021-01-30 05:23:05
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2021-01-28 21:23:40
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2021-01-27 21:23:38
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2021-01-27 12:32:15
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2021-01-27 09:23:23
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2021-01-27 05:23:03
  • First insertion