Amazon Linux 2 : kernel (ALASKERNEL-5.4-2024-061)

high Nessus Plugin ID 191619

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of kernel installed on the remote host is prior to 5.4.269-183.369. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2024-061 advisory.

dm_table_create in drivers/md/dm-table.c in the Linux kernel through 6.7.4 can attempt to (in alloc_targets) allocate more than INT_MAX bytes, and crash, because of a missing check for struct dm_ioctl.target_count. (CVE-2023-52429)

In the Linux kernel, the following vulnerability has been resolved:

net: prevent mss overflow in skb_segment()

Once again syzbot is able to crash the kernel in skb_segment() [1]

GSO_BY_FRAGS is a forbidden value, but unfortunately the followingcomputation in skb_segment() can reach it quite easily :

mss = mss * partial_segs;

65535 = 3 * 5 * 17 * 257, so many initial values of mss can lead toa bad final result.

Make sure to limit segmentation so that the new mss value is smallerthan GSO_BY_FRAGS.

[1]

general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASANKASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]CPU: 1 PID: 5079 Comm: syz- executor993 Not tainted 6.7.0-rc4-syzkaller-00141-g1ae4cd3cbdd0 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023RIP: 0010:skb_segment+0x181d/0x3f30 net/core/skbuff.c:4551Code: 83 e3 02 e9 fb ed ff ff e8 90 68 1c f9 48 8b 84 24 f8 00 00 00 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 8a 21 00 00 48 8b 84 24 f8 00RSP: 0018:ffffc900043473d0 EFLAGS: 00010202RAX: dffffc0000000000 RBX: 0000000000010046 RCX:
ffffffff886b1597RDX: 000000000000000e RSI: ffffffff886b2520 RDI: 0000000000000070RBP: ffffc90004347578 R08: 0000000000000005 R09: 000000000000ffffR10: 000000000000ffff R11: 0000000000000002 R12:
ffff888063202ac0R13: 0000000000010000 R14: 000000000000ffff R15: 0000000000000046FS:
0000555556e7e380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033CR2: 0000000020010000 CR3: 0000000027ee2000 CR4: 00000000003506f0DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400Call Trace:<TASK>udp6_ufo_fragment+0xa0e/0xd00 net/ipv6/udp_offload.c:109ipv6_gso_segment+0x534/0x17e0 net/ipv6/ip6_offload.c:120skb_mac_gso_segment+0x290/0x610 net/core/gso.c:53__skb_gso_segment+0x339/0x710 net/core/gso.c:124skb_gso_segment include/net/gso.h:83 [inline]validate_xmit_skb+0x36c/0xeb0 net/core/dev.c:3626__dev_queue_xmit+0x6f3/0x3d60 net/core/dev.c:4338dev_queue_xmit include/linux/netdevice.h:3134 [inline]packet_xmit+0x257/0x380 net/packet/af_packet.c:276packet_snd net/packet/af_packet.c:3087 [inline]packet_sendmsg+0x24c6/0x5220 net/packet/af_packet.c:3119sock_sendmsg_nosec net/socket.c:730 [inline]__sock_sendmsg+0xd5/0x180 net/socket.c:745__sys_sendto+0x255/0x340 net/socket.c:2190__do_sys_sendto net/socket.c:2202 [inline]__se_sys_sendto net/socket.c:2198 [inline]__x64_sys_sendto+0xe0/0x1b0 net/socket.c:2198do_syscall_x64 arch/x86/entry/common.c:52 [inline]do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83entry_SYSCALL_64_after_hwframe+0x63/0x6bRIP: 0033:0x7f8692032aa9Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 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 b8 ff ff ff f7 d8 64 89 01 48RSP: 002b:00007fff8d685418 EFLAGS: 00000246 ORIG_RAX: 000000000000002cRAX: ffffffffffffffda RBX: 0000000000000003 RCX:
00007f8692032aa9RDX: 0000000000010048 RSI: 00000000200000c0 RDI: 0000000000000003RBP: 00000000000f4240 R08: 0000000020000540 R09: 0000000000000014R10: 0000000000000000 R11: 0000000000000246 R12:
00007fff8d685480R13: 0000000000000001 R14: 00007fff8d685480 R15: 0000000000000003</TASK>Modules linked in:---[ end trace 0000000000000000 ]---RIP: 0010:skb_segment+0x181d/0x3f30 net/core/skbuff.c:4551Code: 83 e3 02 e9 fb ed ff ff e8 90 68 1c f9 48 8b 84 24 f8 00 00 00 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 8a 21 00 00 48 8b 84 24 f8 00RSP:
0018:ffffc900043473d0 EFLAGS: 00010202RAX: dffffc0000000000 RBX: 0000000000010046 RCX:
ffffffff886b1597RDX: 000000000000000e RSI: ffffffff886b2520 RDI: 0000000000000070RBP: ffffc90004347578 R0
---truncated--- (CVE-2023-52435)

A vulnerability was found in vhost_new_msg in drivers/vhost/vhost.c in the Linux kernel, which does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This issue can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file. (CVE-2024-0340)

A vulnerability was reported in the Open vSwitch sub-component in the Linux Kernel. The flaw occurs when a recursive operation of code push recursively calls into the code block. The OVS module does not validate the stack depth, pushing too many frames and causing a stack overflow. As a result, this can lead to a crash or other related issues. (CVE-2024-1151)

In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache (CVE-2024-26598)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update kernel' to update your system.

Plugin Details

Severity: High

ID: 191619

File Name: al2_ALASKERNEL-5_4-2024-061.nasl

Version: 1.2

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 3/6/2024

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2024-26598

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:bpftool, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:python-perf-debuginfo, p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:kernel-debuginfo, p-cpe:/a:amazon:linux:kernel-headers, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:bpftool-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-devel, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:python-perf

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 2/29/2024

Vulnerability Publication Date: 1/9/2024

Reference Information

CVE: CVE-2023-52429, CVE-2023-52435, CVE-2024-0340, CVE-2024-1151, CVE-2024-26598

Detections

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