SUSE-SU-2024:2559-1
Vulnerability from csaf_suse - Published: 2024-07-18 09:05 - Updated: 2024-07-18 09:05Summary
Security update for the Linux Kernel (Live Patch 56 for SLE 12 SP5)
Severity
Important
Notes
Title of the patch: Security update for the Linux Kernel (Live Patch 56 for SLE 12 SP5)
Description of the patch: This update for the Linux Kernel 4.12.14-122_216 fixes several issues.
The following security issues were fixed:
- CVE-2021-47383: Fixed out-of-bound vmalloc access in imageblit (bsc#1225211).
- CVE-2024-26923: Fixed false-positive lockdep splat for spin_lock() in __unix_gc() (bsc#1223683).
- CVE-2024-26828: Fixed underflow in parse_server_interfaces() (bsc#1223363).
- CVE-2021-46955: Fixed an out-of-bounds read with openvswitch, when fragmenting IPv4 packets (bsc#1220537).
- CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210619).
Patchnames: SUSE-2024-2559,SUSE-SLE-Live-Patching-12-SP5-2024-2559
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
7.5 (High)
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
7.8 (High)
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
7.8 (High)
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
7.3 (High)
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
References
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"notes": [
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nopenvswitch: fix stack OOB read while fragmenting IPv4 packets\n\nrunning openvswitch on kernels built with KASAN, it\u0027s possible to see the\nfollowing splat while testing fragmentation of IPv4 packets:\n\n BUG: KASAN: stack-out-of-bounds in ip_do_fragment+0x1b03/0x1f60\n Read of size 1 at addr ffff888112fc713c by task handler2/1367\n\n CPU: 0 PID: 1367 Comm: handler2 Not tainted 5.12.0-rc6+ #418\n Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014\n Call Trace:\n dump_stack+0x92/0xc1\n print_address_description.constprop.7+0x1a/0x150\n kasan_report.cold.13+0x7f/0x111\n ip_do_fragment+0x1b03/0x1f60\n ovs_fragment+0x5bf/0x840 [openvswitch]\n do_execute_actions+0x1bd5/0x2400 [openvswitch]\n ovs_execute_actions+0xc8/0x3d0 [openvswitch]\n ovs_packet_cmd_execute+0xa39/0x1150 [openvswitch]\n genl_family_rcv_msg_doit.isra.15+0x227/0x2d0\n genl_rcv_msg+0x287/0x490\n netlink_rcv_skb+0x120/0x380\n genl_rcv+0x24/0x40\n netlink_unicast+0x439/0x630\n netlink_sendmsg+0x719/0xbf0\n sock_sendmsg+0xe2/0x110\n ____sys_sendmsg+0x5ba/0x890\n ___sys_sendmsg+0xe9/0x160\n __sys_sendmsg+0xd3/0x170\n do_syscall_64+0x33/0x40\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n RIP: 0033:0x7f957079db07\n Code: c3 66 90 41 54 41 89 d4 55 48 89 f5 53 89 fb 48 83 ec 10 e8 eb ec ff ff 44 89 e2 48 89 ee 89 df 41 89 c0 b8 2e 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 35 44 89 c7 48 89 44 24 08 e8 24 ed ff ff 48\n RSP: 002b:00007f956ce35a50 EFLAGS: 00000293 ORIG_RAX: 000000000000002e\n RAX: ffffffffffffffda RBX: 0000000000000019 RCX: 00007f957079db07\n RDX: 0000000000000000 RSI: 00007f956ce35ae0 RDI: 0000000000000019\n RBP: 00007f956ce35ae0 R08: 0000000000000000 R09: 00007f9558006730\n R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000\n R13: 00007f956ce37308 R14: 00007f956ce35f80 R15: 00007f956ce35ae0\n\n The buggy address belongs to the page:\n page:00000000af2a1d93 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x112fc7\n flags: 0x17ffffc0000000()\n raw: 0017ffffc0000000 0000000000000000 dead000000000122 0000000000000000\n raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000\n page dumped because: kasan: bad access detected\n\n addr ffff888112fc713c is located in stack of task handler2/1367 at offset 180 in frame:\n ovs_fragment+0x0/0x840 [openvswitch]\n\n this frame has 2 objects:\n [32, 144) \u0027ovs_dst\u0027\n [192, 424) \u0027ovs_rt\u0027\n\n Memory state around the buggy address:\n ffff888112fc7000: f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffff888112fc7080: 00 f1 f1 f1 f1 00 00 00 00 00 00 00 00 00 00 00\n \u003effff888112fc7100: 00 00 00 f2 f2 f2 f2 f2 f2 00 00 00 00 00 00 00\n ^\n ffff888112fc7180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffff888112fc7200: 00 00 00 00 00 00 f2 f2 f2 00 00 00 00 00 00 00\n\nfor IPv4 packets, ovs_fragment() uses a temporary struct dst_entry. Then,\nin the following call graph:\n\n ip_do_fragment()\n ip_skb_dst_mtu()\n ip_dst_mtu_maybe_forward()\n ip_mtu_locked()\n\nthe pointer to struct dst_entry is used as pointer to struct rtable: this\nturns the access to struct members like rt_mtu_locked into an OOB read in\nthe stack. Fix this changing the temporary variable used for IPv4 packets\nin ovs_fragment(), similarly to what is done for IPv6 few lines below.",
"title": "CVE description"
}
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"references": [
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"summary": "CVE-2021-46955",
"url": "https://www.suse.com/security/cve/CVE-2021-46955"
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}
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{
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"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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"scores": [
{
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"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
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},
{
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"ids": [
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"text": "https://www.suse.com/security/cve/CVE-2021-47383"
}
],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: Fix out-of-bound vmalloc access in imageblit\n\nThis issue happens when a userspace program does an ioctl\nFBIOPUT_VSCREENINFO passing the fb_var_screeninfo struct\ncontaining only the fields xres, yres, and bits_per_pixel\nwith values.\n\nIf this struct is the same as the previous ioctl, the\nvc_resize() detects it and doesn\u0027t call the resize_screen(),\nleaving the fb_var_screeninfo incomplete. And this leads to\nthe updatescrollmode() calculates a wrong value to\nfbcon_display-\u003evrows, which makes the real_y() return a\nwrong value of y, and that value, eventually, causes\nthe imageblit to access an out-of-bound address value.\n\nTo solve this issue I made the resize_screen() be called\neven if the screen does not need any resizing, so it will\n\"fix and fill\" the fb_var_screeninfo independently.",
"title": "CVE description"
}
],
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"summary": "CVE-2021-47383",
"url": "https://www.suse.com/security/cve/CVE-2021-47383"
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"summary": "SUSE Bug 1225208 for CVE-2021-47383",
"url": "https://bugzilla.suse.com/1225208"
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"url": "https://bugzilla.suse.com/1225211"
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"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"
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"text": "https://www.suse.com/security/cve/CVE-2023-1829"
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"notes": [
{
"category": "general",
"text": "A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root.\nWe recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28.",
"title": "CVE description"
}
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"url": "https://www.suse.com/security/cve/CVE-2023-1829"
},
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"summary": "SUSE Bug 1210335 for CVE-2023-1829",
"url": "https://bugzilla.suse.com/1210335"
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"url": "https://bugzilla.suse.com/1210619"
},
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"summary": "SUSE Bug 1217444 for CVE-2023-1829",
"url": "https://bugzilla.suse.com/1217444"
},
{
"category": "external",
"summary": "SUSE Bug 1217531 for CVE-2023-1829",
"url": "https://bugzilla.suse.com/1217531"
},
{
"category": "external",
"summary": "SUSE Bug 1220886 for CVE-2023-1829",
"url": "https://bugzilla.suse.com/1220886"
},
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"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 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.ppc64le",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.s390x",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-07-18T09:05:12Z",
"details": "important"
}
],
"title": "CVE-2023-1829"
},
{
"cve": "CVE-2024-26828",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2024-26828"
}
],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix underflow in parse_server_interfaces()\n\nIn this loop, we step through the buffer and after each item we check\nif the size_left is greater than the minimum size we need. However,\nthe problem is that \"bytes_left\" is type ssize_t while sizeof() is type\nsize_t. That means that because of type promotion, the comparison is\ndone as an unsigned and if we have negative bytes left the loop\ncontinues instead of ending.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.ppc64le",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.s390x",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2024-26828",
"url": "https://www.suse.com/security/cve/CVE-2024-26828"
},
{
"category": "external",
"summary": "SUSE Bug 1223084 for CVE-2024-26828",
"url": "https://bugzilla.suse.com/1223084"
},
{
"category": "external",
"summary": "SUSE Bug 1223363 for CVE-2024-26828",
"url": "https://bugzilla.suse.com/1223363"
}
],
"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 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.ppc64le",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.s390x",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.3,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.ppc64le",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.s390x",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-07-18T09:05:12Z",
"details": "important"
}
],
"title": "CVE-2024-26828"
},
{
"cve": "CVE-2024-26923",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2024-26923"
}
],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Fix garbage collector racing against connect()\n\nGarbage collector does not take into account the risk of embryo getting\nenqueued during the garbage collection. If such embryo has a peer that\ncarries SCM_RIGHTS, two consecutive passes of scan_children() may see a\ndifferent set of children. Leading to an incorrectly elevated inflight\ncount, and then a dangling pointer within the gc_inflight_list.\n\nsockets are AF_UNIX/SOCK_STREAM\nS is an unconnected socket\nL is a listening in-flight socket bound to addr, not in fdtable\nV\u0027s fd will be passed via sendmsg(), gets inflight count bumped\n\nconnect(S, addr)\tsendmsg(S, [V]); close(V)\t__unix_gc()\n----------------\t-------------------------\t-----------\n\nNS = unix_create1()\nskb1 = sock_wmalloc(NS)\nL = unix_find_other(addr)\nunix_state_lock(L)\nunix_peer(S) = NS\n\t\t\t// V count=1 inflight=0\n\n \t\t\tNS = unix_peer(S)\n \t\t\tskb2 = sock_alloc()\n\t\t\tskb_queue_tail(NS, skb2[V])\n\n\t\t\t// V became in-flight\n\t\t\t// V count=2 inflight=1\n\n\t\t\tclose(V)\n\n\t\t\t// V count=1 inflight=1\n\t\t\t// GC candidate condition met\n\n\t\t\t\t\t\tfor u in gc_inflight_list:\n\t\t\t\t\t\t if (total_refs == inflight_refs)\n\t\t\t\t\t\t add u to gc_candidates\n\n\t\t\t\t\t\t// gc_candidates={L, V}\n\n\t\t\t\t\t\tfor u in gc_candidates:\n\t\t\t\t\t\t scan_children(u, dec_inflight)\n\n\t\t\t\t\t\t// embryo (skb1) was not\n\t\t\t\t\t\t// reachable from L yet, so V\u0027s\n\t\t\t\t\t\t// inflight remains unchanged\n__skb_queue_tail(L, skb1)\nunix_state_unlock(L)\n\t\t\t\t\t\tfor u in gc_candidates:\n\t\t\t\t\t\t if (u.inflight)\n\t\t\t\t\t\t scan_children(u, inc_inflight_move_tail)\n\n\t\t\t\t\t\t// V count=1 inflight=2 (!)\n\nIf there is a GC-candidate listening socket, lock/unlock its state. This\nmakes GC wait until the end of any ongoing connect() to that socket. After\nflipping the lock, a possibly SCM-laden embryo is already enqueued. And if\nthere is another embryo coming, it can not possibly carry SCM_RIGHTS. At\nthis point, unix_inflight() can not happen because unix_gc_lock is already\ntaken. Inflight graph remains unaffected.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.ppc64le",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.s390x",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2024-26923",
"url": "https://www.suse.com/security/cve/CVE-2024-26923"
},
{
"category": "external",
"summary": "SUSE Bug 1223384 for CVE-2024-26923",
"url": "https://bugzilla.suse.com/1223384"
},
{
"category": "external",
"summary": "SUSE Bug 1223683 for CVE-2024-26923",
"url": "https://bugzilla.suse.com/1223683"
}
],
"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 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.ppc64le",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.s390x",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.ppc64le",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.s390x",
"SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_216-default-3-8.6.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-07-18T09:05:12Z",
"details": "important"
}
],
"title": "CVE-2024-26923"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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