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HistoryApr 22, 2021 - 6:52 p.m.

[SECURITY] [DSA 4898-1] wpa security update

2021-04-2218:52:18
lists.debian.org
56

7.5 High

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

5.4 Medium

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

59.3%


Debian Security Advisory DSA-4898-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
April 22, 2021 https://www.debian.org/security/faq


Package : wpa
CVE ID : CVE-2020-12695 CVE-2021-0326 CVE-2021-27803
Debian Bug : 976106 981971

Several vulnerabilities have been discovered in wpa_supplicant and
hostapd.

CVE-2020-12695

It was discovered that hostapd does not properly handle UPnP
subscribe messages under certain conditions, allowing an attacker to
cause a denial of service.

CVE-2021-0326

It was discovered that wpa_supplicant does not properly process P2P
(Wi-Fi Direct) group information from active group owners. An
attacker within radio range of the device running P2P could take
advantage of this flaw to cause a denial of service or potentially
execute arbitrary code.

CVE-2021-27803

It was discovered that wpa_supplicant does not properly process
P2P (Wi-Fi Direct) provision discovery requests. An attacker
within radio range of the device running P2P could take advantage
of this flaw to cause a denial of service or potentially execute
arbitrary code.

For the stable distribution (buster), these problems have been fixed in
version 2:2.7+git20190128+0c1e29f-6+deb10u3.

We recommend that you upgrade your wpa packages.

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

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]

7.5 High

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

5.4 Medium

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

59.3%