[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2026-31503":6},{"stargazers_count":4,"fetched_at":5},8,"2026-09-19T04:32:17.889Z",{"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-2026-31503","In the Linux kernel, the following vulnerability has been resolved:  udp: Fix wildcard bind conflict check when using hash2  When binding a udp_sock to a local address and port, UDP uses two hashes (udptable->hash and udptable->hash2) for collision detection. The current code switches to \"hash2\" when hslot->count > 10.  \"hash2\" is keyed by local address and local port. \"hash\" is keyed by local port only.  The issue can be shown in the following bind sequence (pseudo code):  bind(fd1,  \"[fd00::1]:8888\") bind(fd2,  \"[fd00::2]:8888\") bind(fd3,  \"[fd00::3]:8888\") bind(fd4,  \"[fd00::4]:8888\") bind(fd5,  \"[fd00::5]:8888\") bind(fd6,  \"[fd00::6]:8888\") bind(fd7,  \"[fd00::7]:8888\") bind(fd8,  \"[fd00::8]:8888\") bind(fd9,  \"[fd00::9]:8888\") bind(fd10, \"[fd00::10]:8888\")  /* Correctly return -EADDRINUSE because \"hash\" is used  * instead of \"hash2\". udp_lib_lport_inuse() detects the  * conflict.  */ bind(fail_fd, \"[::]:8888\")  /* After one more socket is bound to \"[fd00::11]:8888\",  * hslot->count exceeds 10 and \"hash2\" is used instead.  */ bind(fd11, \"[fd00::11]:8888\") bind(fail_fd, \"[::]:8888\")      /* succeeds unexpectedly */  The same issue applies to the IPv4 wildcard address \"0.0.0.0\" and the IPv4-mapped wildcard address \"::ffff:0.0.0.0\". For example, if there are existing sockets bound to \"192.168.1.[1-11]:8888\", then binding \"0.0.0.0:8888\" or \"[::ffff:0.0.0.0]:8888\" can also miss the conflict when hslot->count > 10.  TCP inet_csk_get_port() already has the correct check in inet_use_bhash2_on_bind(). Rename it to inet_use_hash2_on_bind() and move it to inet_hashtables.h so udp.c can reuse it in this fix.",null,[],[],[],[14],{"_key":15},"CVE-2026-31503",[],[],[],"2026-04-22T14:16:48.863Z","2026-06-15T19:06:16.054468451Z",{"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-2026-31503",[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},5.5,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",6,4.6,[40,62],{"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",[46,50,51,52,56,59],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":55,"fixed_in":9},"lt6_1_170_1","6.1.170-1","excluding",{"version":57,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":58,"version_end_type":55,"fixed_in":9},"lt6_12_85_1","6.12.85-1",{"version":60,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":61,"version_end_type":55,"fixed_in":9},"lt6_19_11_1","6.19.11-1",{"ecosystem":41,"name":63,"vendor":43,"product":63,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":63,"source":9,"versions":64},"linux-6.1",[65],{"version":66,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":67,"version_end_type":55,"fixed_in":9},"lt6_1_170_1~deb11u1","6.1.170-1~deb11u1"]