{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_security_advisory","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP5)","title":"Title of the patch"},{"category":"description","text":"This update for the Linux Kernel 5.14.21-150500_11 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2023-52628: Fixed 4-byte stack OOB write in nftables (bsc#1222118).\n- CVE-2022-48687: Fixed fix out-of-bounds read when setting HMAC data (bsc#1224043).\n- CVE-2024-26852: Fixed use-after-free in ip6_route_mpath_notify() (bsc#1223059).\n","title":"Description of the patch"},{"category":"details","text":"SUSE-2024-2091,SUSE-SLE-Module-Live-Patching-15-SP5-2024-2091","title":"Patchnames"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"SUSE ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"self","summary":"URL of this CSAF notice","url":"https://ftp.suse.com/pub/projects/security/csaf/suse-su-2024_2091-1.json"},{"category":"self","summary":"URL for SUSE-SU-2024:2091-1","url":"https://www.suse.com/support/update/announcement/2024/suse-su-20242091-1/"},{"category":"self","summary":"E-Mail link for SUSE-SU-2024:2091-1","url":"https://lists.suse.com/pipermail/sle-updates/2024-June/035660.html"},{"category":"self","summary":"SUSE Bug 1222118","url":"https://bugzilla.suse.com/1222118"},{"category":"self","summary":"SUSE Bug 1223059","url":"https://bugzilla.suse.com/1223059"},{"category":"self","summary":"SUSE Bug 1224043","url":"https://bugzilla.suse.com/1224043"},{"category":"self","summary":"SUSE CVE CVE-2022-48687 page","url":"https://www.suse.com/security/cve/CVE-2022-48687/"},{"category":"self","summary":"SUSE CVE CVE-2023-52628 page","url":"https://www.suse.com/security/cve/CVE-2023-52628/"},{"category":"self","summary":"SUSE CVE CVE-2024-26852 page","url":"https://www.suse.com/security/cve/CVE-2024-26852/"}],"title":"Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP5)","tracking":{"current_release_date":"2024-06-19T14:03:38Z","generator":{"date":"2024-06-19T14:03:38Z","engine":{"name":"cve-database.git:bin/generate-csaf.pl","version":"1"}},"id":"SUSE-SU-2024:2091-1","initial_release_date":"2024-06-19T14:03:38Z","revision_history":[{"date":"2024-06-19T14:03:38Z","number":"1","summary":"Current version"}],"status":"final","version":"1"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_version","name":"kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64","product":{"name":"kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64","product_id":"kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"}}],"category":"architecture","name":"x86_64"},{"branches":[{"category":"product_name","name":"SUSE Linux Enterprise Live Patching 15 SP5","product":{"name":"SUSE Linux Enterprise Live Patching 15 SP5","product_id":"SUSE Linux Enterprise Live Patching 15 SP5","product_identification_helper":{"cpe":"cpe:/o:suse:sle-module-live-patching:15:sp5"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP5","product_id":"SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"},"product_reference":"kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64","relates_to_product_reference":"SUSE Linux Enterprise Live Patching 15 SP5"}]},"vulnerabilities":[{"cve":"CVE-2022-48687","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2022-48687"}],"notes":[{"category":"general","text":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: sr: fix out-of-bounds read when setting HMAC data.\n\nThe SRv6 layer allows defining HMAC data that can later be used to sign IPv6\nSegment Routing Headers. This configuration is realised via netlink through\nfour attributes: SEG6_ATTR_HMACKEYID, SEG6_ATTR_SECRET, SEG6_ATTR_SECRETLEN and\nSEG6_ATTR_ALGID. Because the SECRETLEN attribute is decoupled from the actual\nlength of the SECRET attribute, it is possible to provide invalid combinations\n(e.g., secret = \"\", secretlen = 64). This case is not checked in the code and\nwith an appropriately crafted netlink message, an out-of-bounds read of up\nto 64 bytes (max secret length) can occur past the skb end pointer and into\nskb_shared_info:\n\nBreakpoint 1, seg6_genl_sethmac (skb=<optimized out>, info=<optimized out>) at net/ipv6/seg6.c:208\n208\t\tmemcpy(hinfo->secret, secret, slen);\n(gdb) bt\n #0  seg6_genl_sethmac (skb=<optimized out>, info=<optimized out>) at net/ipv6/seg6.c:208\n #1  0xffffffff81e012e9 in genl_family_rcv_msg_doit (skb=skb@entry=0xffff88800b1f9f00, nlh=nlh@entry=0xffff88800b1b7600,\n    extack=extack@entry=0xffffc90000ba7af0, ops=ops@entry=0xffffc90000ba7a80, hdrlen=4, net=0xffffffff84237580 <init_net>, family=<optimized out>,\n    family=<optimized out>) at net/netlink/genetlink.c:731\n #2  0xffffffff81e01435 in genl_family_rcv_msg (extack=0xffffc90000ba7af0, nlh=0xffff88800b1b7600, skb=0xffff88800b1f9f00,\n    family=0xffffffff82fef6c0 <seg6_genl_family>) at net/netlink/genetlink.c:775\n #3  genl_rcv_msg (skb=0xffff88800b1f9f00, nlh=0xffff88800b1b7600, extack=0xffffc90000ba7af0) at net/netlink/genetlink.c:792\n #4  0xffffffff81dfffc3 in netlink_rcv_skb (skb=skb@entry=0xffff88800b1f9f00, cb=cb@entry=0xffffffff81e01350 <genl_rcv_msg>)\n    at net/netlink/af_netlink.c:2501\n #5  0xffffffff81e00919 in genl_rcv (skb=0xffff88800b1f9f00) at net/netlink/genetlink.c:803\n #6  0xffffffff81dff6ae in netlink_unicast_kernel (ssk=0xffff888010eec800, skb=0xffff88800b1f9f00, sk=0xffff888004aed000)\n    at net/netlink/af_netlink.c:1319\n #7  netlink_unicast (ssk=ssk@entry=0xffff888010eec800, skb=skb@entry=0xffff88800b1f9f00, portid=portid@entry=0, nonblock=<optimized out>)\n    at net/netlink/af_netlink.c:1345\n #8  0xffffffff81dff9a4 in netlink_sendmsg (sock=<optimized out>, msg=0xffffc90000ba7e48, len=<optimized out>) at net/netlink/af_netlink.c:1921\n...\n(gdb) p/x ((struct sk_buff *)0xffff88800b1f9f00)->head + ((struct sk_buff *)0xffff88800b1f9f00)->end\n$1 = 0xffff88800b1b76c0\n(gdb) p/x secret\n$2 = 0xffff88800b1b76c0\n(gdb) p slen\n$3 = 64 '@'\n\nThe OOB data can then be read back from userspace by dumping HMAC state. This\ncommit fixes this by ensuring SECRETLEN cannot exceed the actual length of\nSECRET.","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"]},"references":[{"category":"external","summary":"CVE-2022-48687","url":"https://www.suse.com/security/cve/CVE-2022-48687"},{"category":"external","summary":"SUSE Bug 1223952 for CVE-2022-48687","url":"https://bugzilla.suse.com/1223952"},{"category":"external","summary":"SUSE Bug 1224043 for CVE-2022-48687","url":"https://bugzilla.suse.com/1224043"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"]}],"scores":[{"cvss_v3":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"products":["SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"]}],"threats":[{"category":"impact","date":"2024-06-19T14:03:38Z","details":"important"}],"title":"CVE-2022-48687"},{"cve":"CVE-2023-52628","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2023-52628"}],"notes":[{"category":"general","text":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nftables: exthdr: fix 4-byte stack OOB write\n\nIf priv->len is a multiple of 4, then dst[len / 4] can write past\nthe destination array which leads to stack corruption.\n\nThis construct is necessary to clean the remainder of the register\nin case ->len is NOT a multiple of the register size, so make it\nconditional just like nft_payload.c does.\n\nThe bug was added in 4.1 cycle and then copied/inherited when\ntcp/sctp and ip option support was added.\n\nBug reported by Zero Day Initiative project (ZDI-CAN-21950,\nZDI-CAN-21951, ZDI-CAN-21961).","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"]},"references":[{"category":"external","summary":"CVE-2023-52628","url":"https://www.suse.com/security/cve/CVE-2023-52628"},{"category":"external","summary":"SUSE Bug 1222117 for CVE-2023-52628","url":"https://bugzilla.suse.com/1222117"},{"category":"external","summary":"SUSE Bug 1222118 for CVE-2023-52628","url":"https://bugzilla.suse.com/1222118"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"]}],"scores":[{"cvss_v3":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"products":["SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"]}],"threats":[{"category":"impact","date":"2024-06-19T14:03:38Z","details":"important"}],"title":"CVE-2023-52628"},{"cve":"CVE-2024-26852","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2024-26852"}],"notes":[{"category":"general","text":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/ipv6: avoid possible UAF in ip6_route_mpath_notify()\n\nsyzbot found another use-after-free in ip6_route_mpath_notify() [1]\n\nCommit f7225172f25a (\"net/ipv6: prevent use after free in\nip6_route_mpath_notify\") was not able to fix the root cause.\n\nWe need to defer the fib6_info_release() calls after\nip6_route_mpath_notify(), in the cleanup phase.\n\n[1]\nBUG: KASAN: slab-use-after-free in rt6_fill_node+0x1460/0x1ac0\nRead of size 4 at addr ffff88809a07fc64 by task syz-executor.2/23037\n\nCPU: 0 PID: 23037 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-01035-gea7f3cfaa588 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024\nCall Trace:\n <TASK>\n  __dump_stack lib/dump_stack.c:88 [inline]\n  dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106\n  print_address_description mm/kasan/report.c:377 [inline]\n  print_report+0x167/0x540 mm/kasan/report.c:488\n  kasan_report+0x142/0x180 mm/kasan/report.c:601\n rt6_fill_node+0x1460/0x1ac0\n  inet6_rt_notify+0x13b/0x290 net/ipv6/route.c:6184\n  ip6_route_mpath_notify net/ipv6/route.c:5198 [inline]\n  ip6_route_multipath_add net/ipv6/route.c:5404 [inline]\n  inet6_rtm_newroute+0x1d0f/0x2300 net/ipv6/route.c:5517\n  rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\n  netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\n  netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\n  netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\n  netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\n  sock_sendmsg_nosec net/socket.c:730 [inline]\n  __sock_sendmsg+0x221/0x270 net/socket.c:745\n  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\n  ___sys_sendmsg net/socket.c:2638 [inline]\n  __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\n do_syscall_64+0xf9/0x240\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\nRIP: 0033:0x7f73dd87dda9\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f73de6550c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007f73dd9ac050 RCX: 00007f73dd87dda9\nRDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005\nRBP: 00007f73dd8ca47a R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 000000000000006e R14: 00007f73dd9ac050 R15: 00007ffdbdeb7858\n </TASK>\n\nAllocated by task 23037:\n  kasan_save_stack mm/kasan/common.c:47 [inline]\n  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n  poison_kmalloc_redzone mm/kasan/common.c:372 [inline]\n  __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389\n  kasan_kmalloc include/linux/kasan.h:211 [inline]\n  __do_kmalloc_node mm/slub.c:3981 [inline]\n  __kmalloc+0x22e/0x490 mm/slub.c:3994\n  kmalloc include/linux/slab.h:594 [inline]\n  kzalloc include/linux/slab.h:711 [inline]\n  fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155\n  ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3758\n  ip6_route_multipath_add net/ipv6/route.c:5298 [inline]\n  inet6_rtm_newroute+0x744/0x2300 net/ipv6/route.c:5517\n  rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\n  netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\n  netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\n  netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\n  netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\n  sock_sendmsg_nosec net/socket.c:730 [inline]\n  __sock_sendmsg+0x221/0x270 net/socket.c:745\n  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\n  ___sys_sendmsg net/socket.c:2638 [inline]\n  __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\n do_syscall_64+0xf9/0x240\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\n\nFreed by task 16:\n  kasan_save_stack mm/kasan/common.c:47 [inline]\n  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n  kasan_save_free_info+0x4e/0x60 mm/kasan/generic.c:640\n  poison_slab_object+0xa6/0xe0 m\n---truncated---","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"]},"references":[{"category":"external","summary":"CVE-2024-26852","url":"https://www.suse.com/security/cve/CVE-2024-26852"},{"category":"external","summary":"SUSE Bug 1223057 for CVE-2024-26852","url":"https://bugzilla.suse.com/1223057"},{"category":"external","summary":"SUSE Bug 1223059 for CVE-2024-26852","url":"https://bugzilla.suse.com/1223059"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"]}],"scores":[{"cvss_v3":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"products":["SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_11-rt-14-150500.6.1.x86_64"]}],"threats":[{"category":"impact","date":"2024-06-19T14:03:38Z","details":"important"}],"title":"CVE-2024-26852"}]}