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debianDebianDEBIAN:DSA-4614-1:25A3A
HistoryFeb 01, 2020 - 12:45 p.m.

[SECURITY] [DSA 4614-1] sudo security update

2020-02-0112:45:56
lists.debian.org
106

7.8 High

CVSS3

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

54.8%


Debian Security Advisory DSA-4614-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
February 01, 2020 https://www.debian.org/security/faq


Package : sudo
CVE ID : CVE-2019-18634
Debian Bug : 950371

Joe Vennix discovered a stack-based buffer overflow vulnerability in
sudo, a program designed to provide limited super user privileges to
specific users, triggerable when configured with the "pwfeedback" option
enabled. An unprivileged user can take advantage of this flaw to obtain
full root privileges.

Details can be found in the upstream advisory at
https://www.sudo.ws/alerts/pwfeedback.html .

For the oldstable distribution (stretch), this problem has been fixed
in version 1.8.19p1-2.1+deb9u2.

For the stable distribution (buster), exploitation of the bug is
prevented due to a change in EOF handling introduced in 1.8.26.

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]

7.8 High

CVSS3

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

54.8%

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