9.1

CVE-2023-52832

wifi: mac80211: don't return unset power in ieee80211_get_tx_power()

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: don't return unset power in ieee80211_get_tx_power()

We can get a UBSAN warning if ieee80211_get_tx_power() returns the
INT_MIN value mac80211 internally uses for "unset power level".

 UBSAN: signed-integer-overflow in net/wireless/nl80211.c:3816:5
 -2147483648 * 100 cannot be represented in type 'int'
 CPU: 0 PID: 20433 Comm: insmod Tainted: G        WC OE
 Call Trace:
  dump_stack+0x74/0x92
  ubsan_epilogue+0x9/0x50
  handle_overflow+0x8d/0xd0
  __ubsan_handle_mul_overflow+0xe/0x10
  nl80211_send_iface+0x688/0x6b0 [cfg80211]
  [...]
  cfg80211_register_wdev+0x78/0xb0 [cfg80211]
  cfg80211_netdev_notifier_call+0x200/0x620 [cfg80211]
  [...]
  ieee80211_if_add+0x60e/0x8f0 [mac80211]
  ieee80211_register_hw+0xda5/0x1170 [mac80211]

In this case, simply return an error instead, to indicate
that no data is available.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.14.331
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.300
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.262
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.202
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.140
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.64
Linux ≫ Linux Kernel Version >= 6.2 < 6.5.13
Linux ≫ Linux Kernel Version >= 6.6 < 6.6.3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.26% 0.661
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 9.1 3.9 5.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CWE-920 Improper Restriction of Power Consumption

The product operates in an environment in which power is a limited resource that cannot be automatically replenished, but the product does not properly restrict the amount of power that its operation consumes.

https://git.kernel.org/stable/c/1571120c44dbe5757aee1612c5b6097cdc42710f
Patch
https://git.kernel.org/stable/c/21a0f310a9f3bfd2b4cf4f382430e638607db846
Patch
https://git.kernel.org/stable/c/298e767362cade639b7121ecb3cc5345b6529f62
Patch
https://git.kernel.org/stable/c/2be24c47ac19bf639c48c082486c08888bd603c6
Patch
https://git.kernel.org/stable/c/5a94cffe90e20e8fade0b9abd4370bd671fe87c7
Patch
https://git.kernel.org/stable/c/717de20abdcd1d4993fa450e28b8086a352620ea
Patch
https://git.kernel.org/stable/c/adc2474d823fe81d8da759207f4f1d3691aa775a
Patch
https://git.kernel.org/stable/c/e160ab85166e77347d0cbe5149045cb25e83937f
Patch
https://git.kernel.org/stable/c/efeae5f4972f75d50002bc50eb112ab9e7069b18
Patch