CVE-2023-52577 (GCVE-0-2023-52577)

Vulnerability from cvelistv5 – Published: 2024-03-02 21:59 – Updated: 2026-05-23 15:26
VLAI
Title
dccp: fix dccp_v4_err()/dccp_v6_err() again
Summary
In the Linux kernel, the following vulnerability has been resolved: dccp: fix dccp_v4_err()/dccp_v6_err() again dh->dccph_x is the 9th byte (offset 8) in "struct dccp_hdr", not in the "byte 7" as Jann claimed. We need to make sure the ICMP messages are big enough, using more standard ways (no more assumptions). syzbot reported: BUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2667 [inline] BUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2681 [inline] BUG: KMSAN: uninit-value in dccp_v6_err+0x426/0x1aa0 net/dccp/ipv6.c:94 pskb_may_pull_reason include/linux/skbuff.h:2667 [inline] pskb_may_pull include/linux/skbuff.h:2681 [inline] dccp_v6_err+0x426/0x1aa0 net/dccp/ipv6.c:94 icmpv6_notify+0x4c7/0x880 net/ipv6/icmp.c:867 icmpv6_rcv+0x19d5/0x30d0 ip6_protocol_deliver_rcu+0xda6/0x2a60 net/ipv6/ip6_input.c:438 ip6_input_finish net/ipv6/ip6_input.c:483 [inline] NF_HOOK include/linux/netfilter.h:304 [inline] ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492 ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586 dst_input include/net/dst.h:468 [inline] ip6_rcv_finish+0x5db/0x870 net/ipv6/ip6_input.c:79 NF_HOOK include/linux/netfilter.h:304 [inline] ipv6_rcv+0xda/0x390 net/ipv6/ip6_input.c:310 __netif_receive_skb_one_core net/core/dev.c:5523 [inline] __netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5637 netif_receive_skb_internal net/core/dev.c:5723 [inline] netif_receive_skb+0x58/0x660 net/core/dev.c:5782 tun_rx_batched+0x83b/0x920 tun_get_user+0x564c/0x6940 drivers/net/tun.c:2002 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:1985 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x8ef/0x15c0 fs/read_write.c:584 ksys_write+0x20f/0x4c0 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __x64_sys_write+0x93/0xd0 fs/read_write.c:646 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Uninit was created at: slab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767 slab_alloc_node mm/slub.c:3478 [inline] kmem_cache_alloc_node+0x577/0xa80 mm/slub.c:3523 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:559 __alloc_skb+0x318/0x740 net/core/skbuff.c:650 alloc_skb include/linux/skbuff.h:1286 [inline] alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6313 sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2795 tun_alloc_skb drivers/net/tun.c:1531 [inline] tun_get_user+0x23cf/0x6940 drivers/net/tun.c:1846 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:1985 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x8ef/0x15c0 fs/read_write.c:584 ksys_write+0x20f/0x4c0 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __x64_sys_write+0x93/0xd0 fs/read_write.c:646 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd CPU: 0 PID: 4995 Comm: syz-executor153 Not tainted 6.6.0-rc1-syzkaller-00014-ga747acc0b752 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3533e10272555c422a7d51ebc0ce8c483429f7f2 , < 4600beae416d754a3cedbb1ecea8181ec05073b6 (git)
Affected: 177212bf6dc1ff2d13d0409cddc5c9e81feec63d , < 62c218124fe58372e0e1f60d5b634d21c264b337 (git)
Affected: 7a7dd70cb954d3efa706a429687ded88c02496fa , < a6f4d582e25d512c9b492670b6608436694357b3 (git)
Affected: 4b8a938e329ae4eb54b73b0c87b5170607b038a8 , < 60d73c62e3e4464f375758b6f2459c13d46465b6 (git)
Affected: 6ecf09699eb1554299aa1e7fd13e9e80f656c2f9 , < 26df9ab5de308caa1503d937533c56c35793018d (git)
Affected: f8a7f10a1dccf9868ff09342a73dce27501b86df , < 73be49248a04746096339a48a33fa2f03bd85969 (git)
Affected: ec620c34f5fa5d055f9f6136a387755db6157712 , < 1512d8f45d3c5d0b5baa00bd8e600492fa569f40 (git)
Affected: 977ad86c2a1bcaf58f01ab98df5cc145083c489c , < 6af289746a636f71f4c0535a9801774118486c7a (git)
Affected: d8171411a661253e6271fa10b65b46daf1b6471c (git)
Affected: 6.4.16 , < 6.5 (semver)
Create a notification for this product.
Linux Linux Affected: 4.14.326 , < 4.14.327 (semver)
Affected: 4.19.295 , < 4.19.296 (semver)
Affected: 5.4.257 , < 5.4.258 (semver)
Affected: 5.10.195 , < 5.10.198 (semver)
Affected: 5.15.132 , < 5.15.134 (semver)
Affected: 6.1.53 , < 6.1.56 (semver)
Affected: 6.5.3 , < 6.5.6 (semver)
Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndccp: fix dccp_v4_err()/dccp_v6_err() again\n\ndh-\u003edccph_x is the 9th byte (offset 8) in \"struct dccp_hdr\",\nnot in the \"byte 7\" as Jann claimed.\n\nWe need to make sure the ICMP messages are big enough,\nusing more standard ways (no more assumptions).\n\nsyzbot reported:\nBUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2667 [inline]\nBUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2681 [inline]\nBUG: KMSAN: uninit-value in dccp_v6_err+0x426/0x1aa0 net/dccp/ipv6.c:94\npskb_may_pull_reason include/linux/skbuff.h:2667 [inline]\npskb_may_pull include/linux/skbuff.h:2681 [inline]\ndccp_v6_err+0x426/0x1aa0 net/dccp/ipv6.c:94\nicmpv6_notify+0x4c7/0x880 net/ipv6/icmp.c:867\nicmpv6_rcv+0x19d5/0x30d0\nip6_protocol_deliver_rcu+0xda6/0x2a60 net/ipv6/ip6_input.c:438\nip6_input_finish net/ipv6/ip6_input.c:483 [inline]\nNF_HOOK include/linux/netfilter.h:304 [inline]\nip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\nip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\ndst_input include/net/dst.h:468 [inline]\nip6_rcv_finish+0x5db/0x870 net/ipv6/ip6_input.c:79\nNF_HOOK include/linux/netfilter.h:304 [inline]\nipv6_rcv+0xda/0x390 net/ipv6/ip6_input.c:310\n__netif_receive_skb_one_core net/core/dev.c:5523 [inline]\n__netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5637\nnetif_receive_skb_internal net/core/dev.c:5723 [inline]\nnetif_receive_skb+0x58/0x660 net/core/dev.c:5782\ntun_rx_batched+0x83b/0x920\ntun_get_user+0x564c/0x6940 drivers/net/tun.c:2002\ntun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\ncall_write_iter include/linux/fs.h:1985 [inline]\nnew_sync_write fs/read_write.c:491 [inline]\nvfs_write+0x8ef/0x15c0 fs/read_write.c:584\nksys_write+0x20f/0x4c0 fs/read_write.c:637\n__do_sys_write fs/read_write.c:649 [inline]\n__se_sys_write fs/read_write.c:646 [inline]\n__x64_sys_write+0x93/0xd0 fs/read_write.c:646\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nUninit was created at:\nslab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767\nslab_alloc_node mm/slub.c:3478 [inline]\nkmem_cache_alloc_node+0x577/0xa80 mm/slub.c:3523\nkmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:559\n__alloc_skb+0x318/0x740 net/core/skbuff.c:650\nalloc_skb include/linux/skbuff.h:1286 [inline]\nalloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6313\nsock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2795\ntun_alloc_skb drivers/net/tun.c:1531 [inline]\ntun_get_user+0x23cf/0x6940 drivers/net/tun.c:1846\ntun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\ncall_write_iter include/linux/fs.h:1985 [inline]\nnew_sync_write fs/read_write.c:491 [inline]\nvfs_write+0x8ef/0x15c0 fs/read_write.c:584\nksys_write+0x20f/0x4c0 fs/read_write.c:637\n__do_sys_write fs/read_write.c:649 [inline]\n__se_sys_write fs/read_write.c:646 [inline]\n__x64_sys_write+0x93/0xd0 fs/read_write.c:646\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nCPU: 0 PID: 4995 Comm: syz-executor153 Not tainted 6.6.0-rc1-syzkaller-00014-ga747acc0b752 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52577\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-02T22:15:49.537\",\"lastModified\":\"2026-06-17T06:43:04.043\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndccp: fix dccp_v4_err()/dccp_v6_err() again\\n\\ndh-\u003edccph_x is the 9th byte (offset 8) in \\\"struct dccp_hdr\\\",\\nnot in the \\\"byte 7\\\" as Jann claimed.\\n\\nWe need to make sure the ICMP messages are big enough,\\nusing more standard ways (no more assumptions).\\n\\nsyzbot reported:\\nBUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2667 [inline]\\nBUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2681 [inline]\\nBUG: KMSAN: uninit-value in dccp_v6_err+0x426/0x1aa0 net/dccp/ipv6.c:94\\npskb_may_pull_reason include/linux/skbuff.h:2667 [inline]\\npskb_may_pull include/linux/skbuff.h:2681 [inline]\\ndccp_v6_err+0x426/0x1aa0 net/dccp/ipv6.c:94\\nicmpv6_notify+0x4c7/0x880 net/ipv6/icmp.c:867\\nicmpv6_rcv+0x19d5/0x30d0\\nip6_protocol_deliver_rcu+0xda6/0x2a60 net/ipv6/ip6_input.c:438\\nip6_input_finish net/ipv6/ip6_input.c:483 [inline]\\nNF_HOOK include/linux/netfilter.h:304 [inline]\\nip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\\nip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\\ndst_input include/net/dst.h:468 [inline]\\nip6_rcv_finish+0x5db/0x870 net/ipv6/ip6_input.c:79\\nNF_HOOK include/linux/netfilter.h:304 [inline]\\nipv6_rcv+0xda/0x390 net/ipv6/ip6_input.c:310\\n__netif_receive_skb_one_core net/core/dev.c:5523 [inline]\\n__netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5637\\nnetif_receive_skb_internal net/core/dev.c:5723 [inline]\\nnetif_receive_skb+0x58/0x660 net/core/dev.c:5782\\ntun_rx_batched+0x83b/0x920\\ntun_get_user+0x564c/0x6940 drivers/net/tun.c:2002\\ntun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\\ncall_write_iter include/linux/fs.h:1985 [inline]\\nnew_sync_write fs/read_write.c:491 [inline]\\nvfs_write+0x8ef/0x15c0 fs/read_write.c:584\\nksys_write+0x20f/0x4c0 fs/read_write.c:637\\n__do_sys_write fs/read_write.c:649 [inline]\\n__se_sys_write fs/read_write.c:646 [inline]\\n__x64_sys_write+0x93/0xd0 fs/read_write.c:646\\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nUninit was created at:\\nslab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767\\nslab_alloc_node mm/slub.c:3478 [inline]\\nkmem_cache_alloc_node+0x577/0xa80 mm/slub.c:3523\\nkmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:559\\n__alloc_skb+0x318/0x740 net/core/skbuff.c:650\\nalloc_skb include/linux/skbuff.h:1286 [inline]\\nalloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6313\\nsock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2795\\ntun_alloc_skb drivers/net/tun.c:1531 [inline]\\ntun_get_user+0x23cf/0x6940 drivers/net/tun.c:1846\\ntun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\\ncall_write_iter include/linux/fs.h:1985 [inline]\\nnew_sync_write fs/read_write.c:491 [inline]\\nvfs_write+0x8ef/0x15c0 fs/read_write.c:584\\nksys_write+0x20f/0x4c0 fs/read_write.c:637\\n__do_sys_write fs/read_write.c:649 [inline]\\n__se_sys_write fs/read_write.c:646 [inline]\\n__x64_sys_write+0x93/0xd0 fs/read_write.c:646\\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nCPU: 0 PID: 4995 Comm: syz-executor153 Not tainted 6.6.0-rc1-syzkaller-00014-ga747acc0b752 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dccp: corrija dccp_v4_err()/dccp_v6_err() nuevamente dh-\u0026gt;dccph_x es el noveno byte (desplazamiento 8) en \\\"struct dccp_hdr\\\", no en el \\\"byte 7\\\" como Jann reclamado. Necesitamos asegurarnos de que los mensajes ICMP sean lo suficientemente grandes, utilizando formas m\u00e1s est\u00e1ndar (sin m\u00e1s suposiciones). syzbot inform\u00f3: ERROR: KMSAN: valor uninit en pskb_may_pull_reason include/linux/skbuff.h:2667 [en l\u00ednea] ERROR: KMSAN: valor uninit en pskb_may_pull include/linux/skbuff.h:2681 [en l\u00ednea] ERROR: KMSAN: uninit -valor en dccp_v6_err+0x426/0x1aa0 net/dccp/ipv6.c:94 pskb_may_pull_reason include/linux/skbuff.h:2667 [en l\u00ednea] pskb_may_pull include/linux/skbuff.h:2681 [en l\u00ednea] dccp_v6_err+0x426/0x1aa0 net/ dccp/ipv6.c:94 icmpv6_notify+0x4c7/0x880 net/ipv6/icmp.c:867 icmpv6_rcv+0x19d5/0x30d0 ip6_protocol_deliver_rcu+0xda6/0x2a60 net/ipv6/ip6_input.c:438 ip6_input_finish net/ipv6 /ip6_input.c:483 [en l\u00ednea] NF_HOOK include/linux/netfilter.h:304 [en l\u00ednea] ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492 ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586 dst_input include/net/dst .h:468 [en l\u00ednea] ip6_rcv_finish+0x5db/0x870 net/ipv6/ip6_input.c:79 NF_HOOK include/linux/netfilter.h:304 [en l\u00ednea] ipv6_rcv+0xda/0x390 net/ipv6/ip6_input.c:310 __netif_receive_skb_one_core net /core/dev.c:5523 [en l\u00ednea] __netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5637 netif_receive_skb_internal net/core/dev.c:5723 [en l\u00ednea] netif_receive_skb+0x58/0x660 net/core/dev.c :5782 tun_rx_batched+0x83b/0x920 tun_get_user+0x564c/0x6940 drivers/net/tun.c:2002 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:1985 [en l\u00ednea] new_sync_write fs /read_write.c:491 [en l\u00ednea] vfs_write+0x8ef/0x15c0 fs/read_write.c:584 ksys_write+0x20f/0x4c0 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [en l\u00ednea] __se_sys_write fs/read_write.c :646 [en l\u00ednea] __x64_sys_write+0x93/0xd0 fs/read_write.c:646 do_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+ 0x63/0xcd Uninit se cre\u00f3 en: slab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767 slab_alloc_node mm/slub.c:3478 [en l\u00ednea] kmem_cache_alloc_node+0x577/0xa80 mm/slub.c:3523 kmalloc_reserve+0x13d/0x4 a0 neto/ core/skbuff.c:559 __alloc_skb+0x318/0x740 net/core/skbuff.c:650 alloc_skb include/linux/skbuff.h:1286 [en l\u00ednea] alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6313 sock_alloc_send_pskb+ 0xa80/0xbf0 net/core/sock.c:2795 controladores tun_alloc_skb/net/tun.c:1531 [en l\u00ednea] tun_get_user+0x23cf/0x6940 controladores/net/tun.c:1846 tun_chr_write_iter+0x3af/0x5d0 controladores/net/tun. c:2048 call_write_iter include/linux/fs.h:1985 [en l\u00ednea] new_sync_write fs/read_write.c:491 [en l\u00ednea] vfs_write+0x8ef/0x15c0 fs/read_write.c:584 ksys_write+0x20f/0x4c0 fs/read_write.c: 637 __do_sys_write fs/read_write.c:649 [en l\u00ednea] __se_sys_write fs/read_write.c:646 [en l\u00ednea] __x64_sys_write+0x93/0xd0 fs/read_write.c:646 do_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd CPU: 0 PID: 4995 Comm: syz-executor153 Not tainted 6.6.0-rc1-syzkaller-00014-ga747acc0b752 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/08/2023\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/dccp/ipv4.c\",\"net/dccp/ipv6.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3533e10272555c422a7d51ebc0ce8c483429f7f2\",\"lessThan\":\"4600beae416d754a3cedbb1ecea8181ec05073b6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"177212bf6dc1ff2d13d0409cddc5c9e81feec63d\",\"lessThan\":\"62c218124fe58372e0e1f60d5b634d21c264b337\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7a7dd70cb954d3efa706a429687ded88c02496fa\",\"lessThan\":\"a6f4d582e25d512c9b492670b6608436694357b3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4b8a938e329ae4eb54b73b0c87b5170607b038a8\",\"lessThan\":\"60d73c62e3e4464f375758b6f2459c13d46465b6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6ecf09699eb1554299aa1e7fd13e9e80f656c2f9\",\"lessThan\":\"26df9ab5de308caa1503d937533c56c35793018d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f8a7f10a1dccf9868ff09342a73dce27501b86df\",\"lessThan\":\"73be49248a04746096339a48a33fa2f03bd85969\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ec620c34f5fa5d055f9f6136a387755db6157712\",\"lessThan\":\"1512d8f45d3c5d0b5baa00bd8e600492fa569f40\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"977ad86c2a1bcaf58f01ab98df5cc145083c489c\",\"lessThan\":\"6af289746a636f71f4c0535a9801774118486c7a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8171411a661253e6271fa10b65b46daf1b6471c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6.4.16\",\"lessThan\":\"6.5\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/dccp/ipv4.c\",\"net/dccp/ipv6.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.14.326\",\"lessThan\":\"4.14.327\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.19.295\",\"lessThan\":\"4.19.296\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.4.257\",\"lessThan\":\"5.4.258\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.10.195\",\"lessThan\":\"5.10.198\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.15.132\",\"lessThan\":\"5.15.134\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.1.53\",\"lessThan\":\"6.1.56\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.5.3\",\"lessThan\":\"6.5.6\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-06-26T20:40:23.115267Z\",\"id\":\"CVE-2023-52577\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-908\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10.195\",\"versionEndExcluding\":\"5.10.198\",\"matchCriteriaId\":\"473AE17D-E000-42E4-8762-8669D7D816A9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.15.132\",\"versionEndExcluding\":\"5.15.134\",\"matchCriteriaId\":\"F47152A2-8AFC-4C71-981D-980B1763D7DD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1.53\",\"versionEndExcluding\":\"6.1.56\",\"matchCriteriaId\":\"D8B05106-E093-4EE4-86F3-EE7AD5802CDD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.5.3\",\"versionEndExcluding\":\"6.5.6\",\"matchCriteriaId\":\"073850EA-45D9-42D3-93E5-C527A7732405\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:4.14.326:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7D69FD12-238F-4D96-8520-4C77E2B6FB85\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:4.19.295:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"67A9EA15-10FD-4821-99DA-139F28267AF1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.4.257:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"66DC852D-D687-42FE-B337-455473C3ADFB\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1512d8f45d3c5d0b5baa00bd8e600492fa569f40\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/26df9ab5de308caa1503d937533c56c35793018d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4600beae416d754a3cedbb1ecea8181ec05073b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/60d73c62e3e4464f375758b6f2459c13d46465b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/62c218124fe58372e0e1f60d5b634d21c264b337\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6af289746a636f71f4c0535a9801774118486c7a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/73be49248a04746096339a48a33fa2f03bd85969\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a6f4d582e25d512c9b492670b6608436694357b3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1512d8f45d3c5d0b5baa00bd8e600492fa569f40\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/26df9ab5de308caa1503d937533c56c35793018d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4600beae416d754a3cedbb1ecea8181ec05073b6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/60d73c62e3e4464f375758b6f2459c13d46465b6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/62c218124fe58372e0e1f60d5b634d21c264b337\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6af289746a636f71f4c0535a9801774118486c7a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/73be49248a04746096339a48a33fa2f03bd85969\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a6f4d582e25d512c9b492670b6608436694357b3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:16:05+00:00",
      "cve": "CVE-2023-52577",
      "id": "CVE-2023-52577",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: dccp: out-of-bounds access in dccp_v4_err() and dccp_v6_err()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52577.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/4600beae416d754a3cedbb1ecea8181ec05073b6\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/62c218124fe58372e0e1f60d5b634d21c264b337\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/a6f4d582e25d512c9b492670b6608436694357b3\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/60d73c62e3e4464f375758b6f2459c13d46465b6\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/26df9ab5de308caa1503d937533c56c35793018d\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/73be49248a04746096339a48a33fa2f03bd85969\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/1512d8f45d3c5d0b5baa00bd8e600492fa569f40\", \"tags\": [\"x_transferred\"]}, {\"url\": 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uninit-value in dccp_v6_err+0x426/0x1aa0 net/dccp/ipv6.c:94\\npskb_may_pull_reason include/linux/skbuff.h:2667 [inline]\\npskb_may_pull include/linux/skbuff.h:2681 [inline]\\ndccp_v6_err+0x426/0x1aa0 net/dccp/ipv6.c:94\\nicmpv6_notify+0x4c7/0x880 net/ipv6/icmp.c:867\\nicmpv6_rcv+0x19d5/0x30d0\\nip6_protocol_deliver_rcu+0xda6/0x2a60 net/ipv6/ip6_input.c:438\\nip6_input_finish net/ipv6/ip6_input.c:483 [inline]\\nNF_HOOK include/linux/netfilter.h:304 [inline]\\nip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\\nip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\\ndst_input include/net/dst.h:468 [inline]\\nip6_rcv_finish+0x5db/0x870 net/ipv6/ip6_input.c:79\\nNF_HOOK include/linux/netfilter.h:304 [inline]\\nipv6_rcv+0xda/0x390 net/ipv6/ip6_input.c:310\\n__netif_receive_skb_one_core net/core/dev.c:5523 [inline]\\n__netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5637\\nnetif_receive_skb_internal net/core/dev.c:5723 [inline]\\nnetif_receive_skb+0x58/0x660 net/core/dev.c:5782\\ntun_rx_batched+0x83b/0x920\\ntun_get_user+0x564c/0x6940 drivers/net/tun.c:2002\\ntun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\\ncall_write_iter include/linux/fs.h:1985 [inline]\\nnew_sync_write fs/read_write.c:491 [inline]\\nvfs_write+0x8ef/0x15c0 fs/read_write.c:584\\nksys_write+0x20f/0x4c0 fs/read_write.c:637\\n__do_sys_write fs/read_write.c:649 [inline]\\n__se_sys_write fs/read_write.c:646 [inline]\\n__x64_sys_write+0x93/0xd0 fs/read_write.c:646\\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nUninit was created at:\\nslab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767\\nslab_alloc_node mm/slub.c:3478 [inline]\\nkmem_cache_alloc_node+0x577/0xa80 mm/slub.c:3523\\nkmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:559\\n__alloc_skb+0x318/0x740 net/core/skbuff.c:650\\nalloc_skb include/linux/skbuff.h:1286 [inline]\\nalloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6313\\nsock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2795\\ntun_alloc_skb drivers/net/tun.c:1531 [inline]\\ntun_get_user+0x23cf/0x6940 drivers/net/tun.c:1846\\ntun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\\ncall_write_iter include/linux/fs.h:1985 [inline]\\nnew_sync_write fs/read_write.c:491 [inline]\\nvfs_write+0x8ef/0x15c0 fs/read_write.c:584\\nksys_write+0x20f/0x4c0 fs/read_write.c:637\\n__do_sys_write fs/read_write.c:649 [inline]\\n__se_sys_write fs/read_write.c:646 [inline]\\n__x64_sys_write+0x93/0xd0 fs/read_write.c:646\\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nCPU: 0 PID: 4995 Comm: syz-executor153 Not tainted 6.6.0-rc1-syzkaller-00014-ga747acc0b752 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": 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{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5.6\", \"versionStartIncluding\": \"6.5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.4.16\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:49:18.646Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52577\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T12:49:18.646Z\", \"dateReserved\": \"2024-03-02T21:55:42.568Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-02T21:59:45.279Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Taxonomy of the tags.





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.