UBUNTU-CVE-2023-47233
The brcm80211 component in the Linux kernel through 6.5.10 has a brcmf_cfg80211_detach use-after-free in the device unplugging (disconnect the USB by hotplug) code. For physically proximate attackers with local access, this "could be exploited in a real world scenario." This is related to brcmf_cfg80211_escan_timeout_worker in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c.
02 / AFFECTED SOFTWARE
Affected packages
6 explicit affected versions
29 explicit affected versions
42 explicit affected versions
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6 explicit affected versions
12 explicit affected versions
15 explicit affected versions
6 explicit affected versions
51 explicit affected versions
4 explicit affected versions
37 explicit affected versions
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37 explicit affected versions
6 explicit affected versions
3 explicit affected versions
44 explicit affected versions
191 explicit affected versions
7 explicit affected versions
45 explicit affected versions
85 explicit affected versions
8 explicit affected versions
60 explicit affected versions
35 explicit affected versions
4 explicit affected versions
14 explicit affected versions
18 explicit affected versions
6 explicit affected versions
91 explicit affected versions
31 explicit affected versions
5 explicit affected versions
87 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
96 explicit affected versions
7 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
42 explicit affected versions
5 explicit affected versions
7 explicit affected versions
12 explicit affected versions
35 explicit affected versions
12 explicit affected versions
9 explicit affected versions
7 explicit affected versions
75 explicit affected versions
12 explicit affected versions
90 explicit affected versions
98 explicit affected versions
12 explicit affected versions
86 explicit affected versions
10 explicit affected versions
10 explicit affected versions
162 explicit affected versions
37 explicit affected versions
95 explicit affected versions
8 explicit affected versions
10 explicit affected versions
24 explicit affected versions
1 explicit affected versions
28 explicit affected versions
26 explicit affected versions
13 explicit affected versions
4 explicit affected versions
1 explicit affected versions
29 explicit affected versions
79 explicit affected versions
13 explicit affected versions
48 explicit affected versions
1 explicit affected versions
74 explicit affected versions
46 explicit affected versions
90 explicit affected versions
8 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
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11 explicit affected versions
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7 explicit affected versions
12 explicit affected versions
89 explicit affected versions
2 explicit affected versions
37 explicit affected versions
29 explicit affected versions
105 explicit affected versions
45 explicit affected versions
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10 explicit affected versions
26 explicit affected versions
6 explicit affected versions
24 explicit affected versions
1 explicit affected versions
6 explicit affected versions
13 explicit affected versions
5 explicit affected versions
112 explicit affected versions
48 explicit affected versions
16 explicit affected versions
48 explicit affected versions
6 explicit affected versions
38 explicit affected versions
3 explicit affected versions
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1 explicit affected versions
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3 explicit affected versions
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1 explicit affected versions
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2 explicit affected versions
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78 explicit affected versions
13 explicit affected versions
42 explicit affected versions
7 explicit affected versions
67 explicit affected versions
40 explicit affected versions
10 explicit affected versions
12 explicit affected versions
12 explicit affected versions
77 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
34 explicit affected versions
37 explicit affected versions
6 explicit affected versions
9 explicit affected versions
38 explicit affected versions
38 explicit affected versions
9 explicit affected versions
37 explicit affected versions
11 explicit affected versions
139 explicit affected versions
45 explicit affected versions
7 explicit affected versions
19 explicit affected versions
72 explicit affected versions
49 explicit affected versions
116 explicit affected versions
95 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
43 explicit affected versions
88 explicit affected versions
9 explicit affected versions
43 explicit affected versions
43 explicit affected versions
119 explicit affected versions
139 explicit affected versions
10 explicit affected versions
8 explicit affected versions
1 explicit affected versions
14 explicit affected versions
78 explicit affected versions
4 explicit affected versions
67 explicit affected versions
6 explicit affected versions
1 explicit affected versions
42 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The brcm80211 component in the Linux kernel through 6.5.10 has a brcmf_cfg80211_detach use-after-free in the device unplugging (disconnect the USB by hotplug) code. For physically proximate attackers with local access, this "could be exploited in a real world scenario." This is related to brcmf_cfg80211_escan_timeout_worker in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c.
05 / REFERENCES
Further evidence
- https://lore.kernel.org/all/[email protected]/
- https://marc.info/?l=linux-kernel&m=169907678011243&w=2
- https://ubuntu.com/security/CVE-2023-47233
- https://ubuntu.com/security/notices/USN-6774-1
- https://ubuntu.com/security/notices/USN-6775-1
- https://ubuntu.com/security/notices/USN-6775-2
- https://ubuntu.com/security/notices/USN-6776-1
- https://ubuntu.com/security/notices/USN-6777-1
- https://ubuntu.com/security/notices/USN-6777-2
- https://ubuntu.com/security/notices/USN-6777-3
- https://ubuntu.com/security/notices/USN-6777-4
- https://ubuntu.com/security/notices/USN-6778-1
- https://ubuntu.com/security/notices/USN-6795-1
- https://ubuntu.com/security/notices/USN-6816-1
- https://ubuntu.com/security/notices/USN-6817-1
- https://ubuntu.com/security/notices/USN-6817-2
- https://ubuntu.com/security/notices/USN-6817-3
- https://ubuntu.com/security/notices/USN-6828-1
- https://ubuntu.com/security/notices/USN-6878-1
- https://www.cve.org/CVERecord?id=CVE-2023-47233