Sudo · Sudo
CVE-2021-3156
Sudo Heap-Based Buffer Overflow Vulnerability
Bei Angriffen ausgenutzt
Hoch 7,8 Angriffswahrscheinlichkeit: >99,9%
Was es ist
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.
CISA: Sudo contains an off-by-one error that can result in a heap-based buffer overflow, which allows for privilege escalation.
Was zu tun ist
Apply updates per vendor instructions.
Frist für US-Bundesbehörden: 27. April 2022
- Zur CISA-Liste hinzugefügt
- 6. April 2022
- Veröffentlicht
- 26. Januar 2021
- Schweregrad
- Hoch 7,8 CVSS 3.1
- Wahrscheinlichkeit von Angriffen in den nächsten 30 Tagen (EPSS)
- >99,9% unter den obersten 0,1% aller bekannten Schwachstellen
- Schwachstellentyp
- CWE-122 CWE-193
- Mehr Details
- NVD · CVE.org · CISA
Alle Quellen (20)
- https://security.gentoo.org/glsa/202101-33
- https://www.debian.org/security/2021/dsa-4839
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LHXK6ICO5AYL…
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CALA5FTXIQBR…
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM
- https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html
- http://seclists.org/fulldisclosure/2021/Jan/79
- 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
- https://www.kb.cert.org/vuls/id/794544
- http://seclists.org/fulldisclosure/2021/Feb/42
- http://www.openwall.com/lists/oss-security/2021/02/15/1
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.sudo.ws/stable.html#1.9.5p2
- https://www.openwall.com/lists/oss-security/2021/01/26/3
- http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html
- https://security.netapp.com/advisory/ntap-20210128-0002/
- https://security.netapp.com/advisory/ntap-20210128-0001/
- http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html
Weitere ausgenutzte Schwachstellen von Sudo
| Hinzugefügt | Schwachstelle | Produkt | Schweregrad | Angriffswahrscheinlichkeit |
|---|---|---|---|---|
| 29.09.2025 | Inclusion of Functionality from Untrusted Control Sphere | Sudo | Kritisch 9,3 | 55% |
Quellen: Known Exploited Vulnerabilities (CISA, gemeinfrei), CVE records (cve.org) und EPSS (FIRST). Die Angriffswahrscheinlichkeit ist die EPSS-Schätzung, dass jemand in den nächsten 30 Tagen versucht, die Schwachstelle auszunutzen.