{"answers":{"affected":"It affects 14 products.","exploited":"There is no known exploitation of CVE-2024-26641 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-26641 is a high-severity vulnerability in Debian Debian Linux, published on 18 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-26641 and fix it if it is affected.\n\nWhat it is: CVE-2024-26641 is a high-severity vulnerability in Debian Debian Linux, published on 18 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2024-26641 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2024-26641/ (Markdown: https://insights.sbomify.com/CVE-2024-26641/index.md)","id":"CVE-2024-26641","markdown":"https://insights.sbomify.com/CVE-2024-26641/index.md","name":"CVE-2024-26641","record":{"aliases":["BELL-CVE-2024-26641","DEBIAN-CVE-2024-26641","GHSA-3pmw-h7mc-vxxq","UBUNTU-CVE-2024-26641"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"An attacker can read uninitialized kernel memory via crafted IPv6 tunnel packets, potentially exposing sensitive data.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"linux_kernel","vendor":"linux"},{"product":"a150_firmware","vendor":"netapp"},{"product":"a220_firmware","vendor":"netapp"},{"product":"a800_firmware","vendor":"netapp"},{"product":"a900_firmware","vendor":"netapp"},{"product":"active_iq_unified_manager","vendor":"netapp"},{"product":"c190_firmware","vendor":"netapp"},{"product":"c800_firmware","vendor":"netapp"},{"product":"fas2720_firmware","vendor":"netapp"},{"product":"fas2750_firmware","vendor":"netapp"},{"product":"fas2820_firmware","vendor":"netapp"},{"product":"fas9500_firmware","vendor":"netapp"},{"product":"ontap_select_deploy_administration_utility","vendor":"netapp"}],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-908","name":"Use of Uninitialized Resource"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()\n\nsyzbot found __ip6_tnl_rcv() could access unitiliazed data [1].\n\nCall pskb_inet_may_pull() to fix this, and initialize ipv6h\nvariable after this call as it can change skb-\u003ehead.\n\n[1]\n BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]\n BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]\n BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7df/0x1e50 include/net/inet_ecn.h:321\n  __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]\n  INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]\n  IP6_ECN_decapsulate+0x7df/0x1e50 include/net/inet_ecn.h:321\n  ip6ip6_dscp_ecn_decapsulate+0x178/0x1b0 net/ipv6/ip6_tunnel.c:727\n  __ip6_tnl_rcv+0xd4e/0x1590 net/ipv6/ip6_tunnel.c:845\n  ip6_tnl_rcv+0xce/0x100 net/ipv6/ip6_tunnel.c:888\n gre_rcv+0x143f/0x1870\n  ip6_protocol_deliver_rcu+0xda6/0x2a60 net/ipv6/ip6_input.c:438\n  ip6_input_finish net/ipv6/ip6_input.c:483 [inline]\n  NF_HOOK include/linux/netfilter.h:314 [inline]\n  ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\n  ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\n  dst_input include/net/dst.h:461 [inline]\n  ip6_rcv_finish+0x5db/0x870 net/ipv6/ip6_input.c:79\n  NF_HOOK include/linux/netfilter.h:314 [inline]\n  ipv6_rcv+0xda/0x390 net/ipv6/ip6_input.c:310\n  __netif_receive_skb_one_core net/core/dev.c:5532 [inline]\n  __netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5646\n  netif_receive_skb_internal net/core/dev.c:5732 [inline]\n  netif_receive_skb+0x58/0x660 net/core/dev.c:5791\n  tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1555\n  tun_get_user+0x53af/0x66d0 drivers/net/tun.c:2002\n  tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n  call_write_iter include/linux/fs.h:2084 [inline]\n  new_sync_write fs/read_write.c:497 [inline]\n  vfs_write+0x786/0x1200 fs/read_write.c:590\n  ksys_write+0x20f/0x4c0 fs/read_write.c:643\n  __do_sys_write fs/read_write.c:655 [inline]\n  __se_sys_write fs/read_write.c:652 [inline]\n  __x64_sys_write+0x93/0xd0 fs/read_write.c:652\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nUninit was created at:\n  slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768\n  slab_alloc_node mm/slub.c:3478 [inline]\n  kmem_cache_alloc_node+0x5e9/0xb10 mm/slub.c:3523\n  kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:560\n  __alloc_skb+0x318/0x740 net/core/skbuff.c:651\n  alloc_skb include/linux/skbuff.h:1286 [inline]\n  alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6334\n  sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2787\n  tun_alloc_skb drivers/net/tun.c:1531 [inline]\n  tun_get_user+0x1e8a/0x66d0 drivers/net/tun.c:1846\n  tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n  call_write_iter include/linux/fs.h:2084 [inline]\n  new_sync_write fs/read_write.c:497 [inline]\n  vfs_write+0x786/0x1200 fs/read_write.c:590\n  ksys_write+0x20f/0x4c0 fs/read_write.c:643\n  __do_sys_write fs/read_write.c:655 [inline]\n  __se_sys_write fs/read_write.c:652 [inline]\n  __x64_sys_write+0x93/0xd0 fs/read_write.c:652\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nCPU: 0 PID: 5034 Comm: syz-executor331 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()","id":"CVE-2024-26641","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","linux:linux_kernel","netapp:active_iq_unified_manager","netapp:ontap_select_deploy_administration_utility"],"type":"information_disclosure","year":"2024"},"n_packages":0,"n_references":6,"next":{"headline":"netfilter: nf_tables: disallow anonymous set with timeout flag","id":"CVE-2024-26642"},"packages":[],"prev":{"headline":"tcp: add sanity checks to rx zerocopy","id":"CVE-2024-26640"},"products":["Linux"],"published":"2024-03-18","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"An attacker can read uninitialized kernel memory via crafted IPv6 tunnel packets, potentially exposing sensitive data.","url":"https://insights.sbomify.com/CVE-2024-26641/"}