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
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
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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      "date": "2026-10-29",
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          "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."
        },
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          "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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      "lastModified": "2024-11-21T08:40:40.847",
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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."
          }
        ],
        "id": "CVE-2023-52832",
        "lastModified": "2026-06-17T06:43:41.067",
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                "baseScore": 9.1,
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                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
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                    "automatable": "yes"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-21T19:51:54.630981Z",
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                  "confidentialityImpact": "HIGH",
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}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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