certfr_avis - CERTFR-2021-AVI-063

CERTFR-2021-AVI-063

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité a été découverte dans Sudo. Elle permet à un attaquant de provoquer une élévation de privilèges. Les différents éditeurs de distributions Linux ont déjà publié des correctifs.

Solution

Il est recommandé d'utiliser la mise à jour de sécurité fournie par les éditeurs des distributions Linux.

Impacted products

	Vendor	Product	Description
	Sudo	Sudo	les versions de Sudo fournies par les éditeurs de distribution Linux sans le dernier correctif de sécurité
	Sudo	Sudo	Sudo versions antérieures à 1.9.5p2

References

Title

Publication Time

CVE-2021-3156 (GCVE-0-2021-3156)

Vulnerability from cvelistv5 – Published: 2021-01-26 00:00 – Updated: 2025-10-21 23:35

Summary

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.

Severity ?

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

Assigner

mitre

References

URL

Tags

	https://lists.debian.org/debian-lts-announce/2021…	mailing-list
	http://seclists.org/fulldisclosure/2021/Jan/79	mailing-list
	http://www.openwall.com/lists/oss-security/2021/01/26/3	mailing-list
	https://security.gentoo.org/glsa/202101-33	vendor-advisory
	https://www.debian.org/security/2021/dsa-4839	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	http://www.openwall.com/lists/oss-security/2021/01/27/1	mailing-list
	http://www.openwall.com/lists/oss-security/2021/01/27/2	mailing-list
	https://tools.cisco.com/security/center/content/C…	vendor-advisory
	https://www.kb.cert.org/vuls/id/794544	third-party-advisory
	http://seclists.org/fulldisclosure/2021/Feb/42	mailing-list
	http://www.openwall.com/lists/oss-security/2021/02/15/1	mailing-list
	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/…
	http://packetstormsecurity.com/files/161160/Sudo-…
	https://security.netapp.com/advisory/ntap-2021012…
	https://security.netapp.com/advisory/ntap-2021012…
	http://packetstormsecurity.com/files/161230/Sudo-…
	http://packetstormsecurity.com/files/161270/Sudo-…
	http://packetstormsecurity.com/files/161293/Sudo-…
	https://support.apple.com/kb/HT212177
	https://kc.mcafee.com/corporate/index?page=conten…
	https://www.beyondtrust.com/blog/entry/security-a…
	https://www.synology.com/security/advisory/Synolo…
	http://www.openwall.com/lists/oss-security/2021/09/14/2	mailing-list
	https://www.oracle.com/security-alerts/cpuoct2021.html
	https://www.oracle.com/security-alerts/cpuapr2022.html
	http://www.openwall.com/lists/oss-security/2024/01/30/8	mailing-list
	http://www.openwall.com/lists/oss-security/2024/01/30/6	mailing-list
	http://packetstormsecurity.com/files/176932/glibc…
	http://seclists.org/fulldisclosure/2024/Feb/3	mailing-list
	https://www.vicarius.io/vsociety/posts/sudoedit-p…

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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