csaf_redhat - rhsa-2021

rhsa-2021_0809

Vulnerability from csaf_redhat

Published

2021-03-11 07:43

Modified

2024-11-22 16:33

Summary

Red Hat Security Advisory: wpa_supplicant security update

Notes

Topic

An update for wpa_supplicant is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

The wpa_supplicant packages contain an 802.1X Supplicant with support for WEP, WPA, WPA2 (IEEE 802.11i / RSN), and various EAP authentication methods. They implement key negotiation with a WPA Authenticator for client stations and controls the roaming and IEEE 802.11 authentication and association of the WLAN driver. Security Fix(es): * wpa_supplicant: Use-after-free in P2P provision discovery processing (CVE-2021-27803) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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  "vulnerabilities": [
    {
      "cve": "CVE-2021-27803",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "discovery_date": "2021-02-25T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1933361"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the wpa_supplicant, in the way it processes P2P (Wi-Fi Direct) provision discovery requests. This flaw allows an attacker who is within radio range of the device running P2P discovery to cause termination of the wpa_supplicant process or potentially cause code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "wpa_supplicant: Use-after-free in P2P provision discovery processing",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "An attacker (or a system controlled by the attacker) needs to be within radio range of the vulnerable system to send a set of suitably constructed management frames that trigger the corner case to be reached in the management of the P2P peer table.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-27803"
        },
        {
          "category": "external",
          "summary": "RHBZ#1933361",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1933361"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-27803",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-27803"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-27803",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27803"
        },
        {
          "category": "external",
          "summary": "https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt",
          "url": "https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt"
        }
      ],
      "release_date": "2021-02-25T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-03-11T07:43:51+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          "restart_required": {
            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2021:0809"
        },
        {
          "category": "workaround",
          "details": "Disable the P2P (control interface command \"P2P_SET disabled 1\" or \"p2p_disabled=1\" in (each, if multiple interfaces used) wpa_supplicant configuration file)",
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        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "wpa_supplicant: Use-after-free in P2P provision discovery processing"
    }
  ]
}

cve-2021-27803

Vulnerability from cvelistv5

Published

2021-02-26 22:11

Modified

2024-08-03 21:33

Severity ?

Summary

A vulnerability was discovered in how p2p/p2p_pd.c in wpa_supplicant before 2.10 processes P2P (Wi-Fi Direct) provision discovery requests. It could result in denial of service or other impact (potentially execution of arbitrary code), for an attacker within radio range.

References

▼	URL	Tags
	https://www.openwall.com/lists/oss-security/2021/02/25/3	x_refsource_MISC
	https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt	x_refsource_MISC
	https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2021/02/27/1	mailing-list, x_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/	vendor-advisory, x_refsource_FEDORA
	https://lists.debian.org/debian-lts-announce/2021/03/msg00003.html	mailing-list, x_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/	vendor-advisory, x_refsource_FEDORA
	https://www.debian.org/security/2021/dsa-4898	vendor-advisory, x_refsource_DEBIAN

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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          },
          {
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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