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debianDebianDEBIAN:DSA-4839-1:0839A
HistoryJan 26, 2021 - 6:05 p.m.

[SECURITY] [DSA 4839-1] sudo security update

2021-01-2618:05:33
lists.debian.org
116
sudo
root privilege
vulnerability
upgrade
debian
security advisory

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.3

Confidence

High

EPSS

0.96

Percentile

99.5%

JSON

Debian Security Advisory DSA-4839-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
January 26, 2021 https://www.debian.org/security/faq

Package : sudo
CVE ID : CVE-2021-3156

The Qualys Research Labs discovered a heap-based buffer overflow
vulnerability in sudo, a program designed to provide limited super user
privileges to specific users. Any local user (sudoers and non-sudoers)
can exploit this flaw for root privilege escalation.

For the stable distribution (buster), this problem has been fixed in
version 1.8.27-1+deb10u3.

We recommend that you upgrade your sudo packages.

For the detailed security status of sudo please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/sudo

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

OSVersionArchitecturePackageVersionFilename
Debian10armelsudo-ldap-dbgsym< 1.8.27-1+deb10u3sudo-ldap-dbgsym_1.8.27-1+deb10u3_armel.deb
Debian9arm64sudo-ldap< 1.8.19p1-2.1+deb9u3sudo-ldap_1.8.19p1-2.1+deb9u3_arm64.deb
Debian10allsudo< 1.8.27-1+deb10u3sudo_1.8.27-1+deb10u3_all.deb
Debian10armelsudo-ldap< 1.8.27-1+deb10u3sudo-ldap_1.8.27-1+deb10u3_armel.deb
Debian9armelsudo< 1.8.19p1-2.1+deb9u3sudo_1.8.19p1-2.1+deb9u3_armel.deb
Debian10s390xsudo-dbgsym< 1.8.27-1+deb10u3sudo-dbgsym_1.8.27-1+deb10u3_s390x.deb
Debian10mipselsudo-ldap-dbgsym< 1.8.27-1+deb10u3sudo-ldap-dbgsym_1.8.27-1+deb10u3_mipsel.deb
Debian10s390xsudo-ldap-dbgsym< 1.8.27-1+deb10u3sudo-ldap-dbgsym_1.8.27-1+deb10u3_s390x.deb
Debian10mipselsudo-ldap< 1.8.27-1+deb10u3sudo-ldap_1.8.27-1+deb10u3_mipsel.deb
Debian10arm64sudo-dbgsym< 1.8.27-1+deb10u3sudo-dbgsym_1.8.27-1+deb10u3_arm64.deb
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CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.3

Confidence

High

EPSS

0.96

Percentile

99.5%

JSON
Related for DEBIAN:DSA-4839-1:0839A
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