[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2021-47633":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T02:53:27.892Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":30,"epss":9,"epss_history":31,"metrics":32,"affected":39},"DEBIAN-CVE-2021-47633","In the Linux kernel, the following vulnerability has been resolved:  ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111  The bug was found during fuzzing. Stacktrace locates it in ath5k_eeprom_convert_pcal_info_5111. When none of the curve is selected in the loop, idx can go up to AR5K_EEPROM_N_PD_CURVES. The line makes pd out of bound. pd = &chinfo[pier].pd_curves[idx];  There are many OOB writes using pd later in the code. So I added a sanity check for idx. Checks for other loops involving AR5K_EEPROM_N_PD_CURVES are not needed as the loop index is not used outside the loops.  The patch is NOT tested with real device.  The following is the fuzzing report  BUG: KASAN: slab-out-of-bounds in ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] Write of size 1 at addr ffff8880174a4d60 by task modprobe/214  CPU: 0 PID: 214 Comm: modprobe Not tainted 5.6.0 #1 Call Trace:  dump_stack+0x76/0xa0  print_address_description.constprop.0+0x16/0x200  ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]  ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]  __kasan_report.cold+0x37/0x7c  ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]  kasan_report+0xe/0x20  ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]  ? apic_timer_interrupt+0xa/0x20  ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k]  ? ath5k_pci_eeprom_read+0x228/0x3c0 [ath5k]  ath5k_eeprom_init+0x2513/0x6290 [ath5k]  ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k]  ? usleep_range+0xb8/0x100  ? apic_timer_interrupt+0xa/0x20  ? ath5k_eeprom_read_pcal_info_2413+0x2f20/0x2f20 [ath5k]  ath5k_hw_init+0xb60/0x1970 [ath5k]  ath5k_init_ah+0x6fe/0x2530 [ath5k]  ? kasprintf+0xa6/0xe0  ? ath5k_stop+0x140/0x140 [ath5k]  ? _dev_notice+0xf6/0xf6  ? apic_timer_interrupt+0xa/0x20  ath5k_pci_probe.cold+0x29a/0x3d6 [ath5k]  ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k]  ? mutex_lock+0x89/0xd0  ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k]  local_pci_probe+0xd3/0x160  pci_device_probe+0x23f/0x3e0  ? pci_device_remove+0x280/0x280  ? pci_device_remove+0x280/0x280  really_probe+0x209/0x5d0",null,[],[],[],[14],{"_key":15},"CVE-2021-47633",[],[],[],"2025-02-26T06:37:05.060Z","2026-04-28T20:23:33.927076Z",{"cisa_kev":22,"cisa_ransomware":22,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[24],{"url":25,"sources":26,"tags":28},"https://security-tracker.debian.org/tracker/CVE-2021-47633",[27],"osv_debian",[29],"Advisory",[],[],[33],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":34,"cvss_v4_0":9},{"baseScore":35,"baseSeverity":9,"vectorString":36,"impactScore":37,"exploitabilityScore":38},7.1,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",8.7,4.6,[40],{"ecosystem":41,"name":42,"vendor":43,"product":42,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":42,"source":9,"versions":45},"Debian","linux","debian","deb",[46,52,55,56],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":50,"version_end_type":51,"fixed_in":9},"lt5_10_113_1",true,"ecosystem","5.10.113-1","excluding",{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9},"lt5_17_3_1","5.17.3-1",{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9},{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9}]