[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2026-43037":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T20:55:29.923Z",{"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":38},"DEBIAN-CVE-2026-43037","In the Linux kernel, the following vulnerability has been resolved:  ip6_tunnel: clear skb2->cb[] in ip4ip6_err()  Oskar Kjos reported the following problem.  ip4ip6_err() calls icmp_send() on a cloned skb whose cb[] was written by the IPv6 receive path as struct inet6_skb_parm. icmp_send() passes IPCB(skb2) to __ip_options_echo(), which interprets that cb[] region as struct inet_skb_parm (IPv4). The layouts differ: inet6_skb_parm.nhoff at offset 14 overlaps inet_skb_parm.opt.rr, producing a non-zero rr value. __ip_options_echo() then reads optlen from attacker-controlled packet data at sptr[rr+1] and copies that many bytes into dopt->__data, a fixed 40-byte stack buffer (IP_OPTIONS_DATA_FIXED_SIZE).  To fix this we clear skb2->cb[], as suggested by Oskar Kjos.  Also add minimal IPv4 header validation (version == 4, ihl >= 5).",null,[],[],[],[14],{"_key":15},"CVE-2026-43037",[],[],[],"2026-05-01T15:16:48.383Z","2026-05-29T18:01:22.512868042Z",{"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-2026-43037",[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":35,"exploitabilityScore":37},9.8,"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",10,[39,63],{"ecosystem":40,"name":41,"vendor":42,"product":41,"cpe_part":9,"purl_type":43,"purl_namespace":42,"purl_name":41,"source":9,"versions":44},"Debian","linux","debian","deb",[45,49,50,54,57,60],{"version":46,"is_range":47,"range_type":48,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"version":46,"is_range":47,"range_type":48,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":51,"is_range":47,"range_type":48,"version_start":9,"version_start_type":9,"version_end":52,"version_end_type":53,"fixed_in":9},"lt5_10_257_1","5.10.257-1","excluding",{"version":55,"is_range":47,"range_type":48,"version_start":9,"version_start_type":9,"version_end":56,"version_end_type":53,"fixed_in":9},"lt6_1_170_1","6.1.170-1",{"version":58,"is_range":47,"range_type":48,"version_start":9,"version_start_type":9,"version_end":59,"version_end_type":53,"fixed_in":9},"lt6_12_85_1","6.12.85-1",{"version":61,"is_range":47,"range_type":48,"version_start":9,"version_start_type":9,"version_end":62,"version_end_type":53,"fixed_in":9},"lt6_19_12_1","6.19.12-1",{"ecosystem":40,"name":64,"vendor":42,"product":64,"cpe_part":9,"purl_type":43,"purl_namespace":42,"purl_name":64,"source":9,"versions":65},"linux-6.1",[66],{"version":67,"is_range":47,"range_type":48,"version_start":9,"version_start_type":9,"version_end":68,"version_end_type":53,"fixed_in":9},"lt6_1_170_1~deb11u1","6.1.170-1~deb11u1"]