Ubuntu.comUB:CVE-2021-47194CVE-2021-47194
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
0.0004 Low
EPSS
Percentile
5.1%
In the Linux kernel, the following vulnerability has been resolved:
cfg80211: call cfg80211_stop_ap when switch from P2P_GO type If the
userspace tools switch from NL80211_IFTYPE_P2P_GO to NL80211_IFTYPE_ADHOC
via send_msg(NL80211_CMD_SET_INTERFACE), it does not call the cleanup
cfg80211_stop_ap(), this leads to the initialization of in-use data. For
example, this path re-init the sdata->assigned_chanctx_list while it is
still an element of assigned_vifs list, and makes that linked list corrupt.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux | < 5.4.0-97.110 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1064.67 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws-5.4 | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1119.126~16.04.2 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-azure | < 5.4.0-1068.71 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-azure | < 4.15.0-1130.143~14.04.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-azure | < 4.15.0-1130.143~16.04.1 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-azure-4.15 | < any | UNKNOWN |
References
git.kernel.org/linus/563fbefed46ae4c1f70cffb8eb54c02df480b2c2 (5.16-rc2)
git.kernel.org/stable/c/0738cdb636c21ab552eaecf905efa4a6070e3ebc
git.kernel.org/stable/c/4e458abbb4a523f1413bfe15c079cf4e24c15b21
git.kernel.org/stable/c/52affc201fc22a1ab9a59ef0ed641a9adfcb8d13
git.kernel.org/stable/c/563fbefed46ae4c1f70cffb8eb54c02df480b2c2
git.kernel.org/stable/c/5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd
git.kernel.org/stable/c/7b97b5776daa0b39dbdadfea176f9cc0646d4a66
git.kernel.org/stable/c/8f06bb8c216bcd172394f61e557727e691b4cb24
git.kernel.org/stable/c/b8a045e2a9b234cfbc06cf36923886164358ddec
launchpad.net/bugs/cve/CVE-2021-47194
nvd.nist.gov/vuln/detail/CVE-2021-47194
security-tracker.debian.org/tracker/CVE-2021-47194
www.cve.org/CVERecord?id=CVE-2021-47194
Related
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
0.0004 Low
EPSS
Percentile
5.1%