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CVE-2023-52832 (GCVE-0-2023-52832)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:31 – Updated: 2026-05-11 19:33
VLAI
Title
wifi: mac80211: don't return unset power in ieee80211_get_tx_power()
Summary
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.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-21 19:51 UTC
CWE
  • CWE-920 - Improper Restriction of Power Consumption
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde , < 717de20abdcd1d4993fa450e28b8086a352620ea (git)
Affected: db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde , < 21a0f310a9f3bfd2b4cf4f382430e638607db846 (git)
Affected: db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde , < 2be24c47ac19bf639c48c082486c08888bd603c6 (git)
Affected: db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde , < adc2474d823fe81d8da759207f4f1d3691aa775a (git)
Affected: db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde , < 5a94cffe90e20e8fade0b9abd4370bd671fe87c7 (git)
Affected: db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde , < e160ab85166e77347d0cbe5149045cb25e83937f (git)
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Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.202 , ≤ 5.10.* (semver)
Unaffected: 5.15.140 , ≤ 5.15.* (semver)
Unaffected: 6.1.64 , ≤ 6.1.* (semver)
Unaffected: 6.5.13 , ≤ 6.5.* (semver)
Unaffected: 6.6.3 , ≤ 6.6.* (semver)
Unaffected: 6.7 , ≤ * (original_commit_for_fix)
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linux linux_kernel Affected: 1da177e4c3f4
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 4.14.331
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 4.19.300
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 5.4.262
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 5.10.202
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 5.15.140
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.1.64
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.5.13
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.6.3
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.7
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: mac80211: don\u0027t return unset power in ieee80211_get_tx_power()\\n\\nWe can get a UBSAN warning if ieee80211_get_tx_power() returns the\\nINT_MIN value mac80211 internally uses for \\\"unset power level\\\".\\n\\n UBSAN: signed-integer-overflow in net/wireless/nl80211.c:3816:5\\n -2147483648 * 100 cannot be represented in type \u0027int\u0027\\n CPU: 0 PID: 20433 Comm: insmod Tainted: G        WC OE\\n Call Trace:\\n  dump_stack+0x74/0x92\\n  ubsan_epilogue+0x9/0x50\\n  handle_overflow+0x8d/0xd0\\n  __ubsan_handle_mul_overflow+0xe/0x10\\n  nl80211_send_iface+0x688/0x6b0 [cfg80211]\\n  [...]\\n  cfg80211_register_wdev+0x78/0xb0 [cfg80211]\\n  cfg80211_netdev_notifier_call+0x200/0x620 [cfg80211]\\n  [...]\\n  ieee80211_if_add+0x60e/0x8f0 [mac80211]\\n  ieee80211_register_hw+0xda5/0x1170 [mac80211]\\n\\nIn this case, simply return an error instead, to indicate\\nthat no data is available.\"}, {\"lang\": \"es\", \"value\": \" En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: mac80211: no devolver energ\\u00eda no configurada en ieee80211_get_tx_power(). Podemos obtener una advertencia de UBSAN si ieee80211_get_tx_power() devuelve el valor INT_MIN que mac80211 usa internamente para \\\"nivel de energ\\u00eda no configurada\\\". UBSAN: desbordamiento de entero con signo en net/wireless/nl80211.c:3816:5 -2147483648 * 100 no se puede representar en el tipo \u0027int\u0027 CPU: 0 PID: 20433 Comm: insmod Contaminado: 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] En este caso, simplemente devuelva un error para indicar que no hay datos disponibles.\"}]",
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Podemos obtener una advertencia de UBSAN si ieee80211_get_tx_power() devuelve el valor INT_MIN que mac80211 usa internamente para \\\"nivel de energ\u00eda no configurada\\\". UBSAN: desbordamiento de entero con signo en net/wireless/nl80211.c:3816:5 -2147483648 * 100 no se puede representar en el tipo \u0027int\u0027 CPU: 0 PID: 20433 Comm: insmod Contaminado: 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] En este caso, simplemente devuelva un error para indicar que no hay datos 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T06:49:17+00:00",
      "cve": "CVE-2023-52832",
      "id": "CVE-2023-52832",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "429",
      "product_status:known_affected": "64",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: mac80211: don\u0026#39;t return unset power in ieee80211_get_tx_power()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52832.json",
      "version": "3"
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    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-05T00:49:44Z",
      "cve": "CVE-2023-52832",
      "id": "CVE-2023-52832",
      "initial_release_date": "2024-05-29T14:19:10Z",
      "product_status:known_affected": "477",
      "product_status:known_not_affected": "22",
      "product_status:recommended": "938",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-52832",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-52832.json",
      "version": "106"
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      "cveMetadata": "{\"cveId\": \"CVE-2023-52832\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:17:43.984Z\", \"dateReserved\": \"2024-05-21T15:19:24.252Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T15:31:34.247Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.