CVE-2023-52832

Critical

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.

Package Linux Kernel
Published 2024-05-21
Last modified 2026-01-05
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

9.1

out of 10
Critical
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weakness type

CWE-920

CVE-2023-52832 is classified as CWE-920

See CWE-920 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 5.7 and later are affected. Fixed in 5.10.202, 5.15.140, 6.1.64, 6.5.13, 6.6.3, 6.7 and their respective stable series.

Affected from
≥ 5.7
Fixed in
✓ 5.10.202 5.10.x ✓ 5.15.140 5.15.x ✓ 6.1.64 6.1.x ✓ 6.5.13 6.5.x ✓ 6.6.3 6.6.x ✓ 6.7

References

9 total
Showing 5 of 9 references View all on NVD

Frequently asked questions

  • What is CVE-2023-52832?

    CVE-2023-52832 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.1 out of 10 . It affects Linux kernel versions from 5.7 onward and has been patched in 5.10.202, 5.15.140, 6.1.64 and others. CVE-2023-52832 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2023-52832?

    CVE-2023-52832 has a CVSS score of 9.1 out of 10, rated Critical severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H .

  • Is there a patch available for CVE-2023-52832?

    Yes. CVE-2023-52832 has been patched. Fixed versions include 5.10.202, 5.15.140, 6.1.64 and others. If you are running Linux kernel 5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2023-52832 actively exploited?

    No. CVE-2023-52832 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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