In the Linux kernel, the following vulnerability has been resolved: erspan: do not use skb_mac_header() in ndo_start_xmit() Drivers should not assume skb_mac_header(skb) == skb->data in their ndo_start_xmit(). Use skb_network_offset() and skb_transport_offset() which better describe what is needed in erspan_fb_xmit() and ip6erspan_tunnel_xmit() syzbot reported: WARNING: CPU: 0 PID: 5083 at include/linux/skbuff.h:2873 skb_mac_header include/linux/skbuff.h:2873 [inline] WARNING: CPU: 0 PID: 5083 at include/linux/skbuff.h:2873 ip6erspan_tunnel_xmit+0x1d9c/0x2d90 net/ipv6/ip6_gre.c:962 Modules linked in: CPU: 0 PID: 5083 Comm: syz-executor406 Not tainted 6.3.0-rc2-syzkaller-00866-gd4671cb96fa3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:skb_mac_header include/linux/skbuff.h:2873 [inline] RIP: 0010:ip6erspan_tunnel_xmit+0x1d9c/0x2d90 net/ipv6/ip6_gre.c:962 Code: 04 02 41 01 de 84 c0 74 08 3c 03 0f 8e 1c 0a 00 00 45 89 b4 24 c8 00 00 00 c6 85 77 fe ff ff 01 e9 33 e7 ff ff e8 b4 27 a1 f8 <0f> 0b e9 b6 e7 ff ff e8 a8 27 a1 f8 49 8d bf f0 0c 00 00 48 b8 00 RSP: 0018:ffffc90003b2f830 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000000ffff RCX: 0000000000000000 RDX: ffff888021273a80 RSI: ffffffff88e1bd4c RDI: 0000000000000003 RBP: ffffc90003b2f9d8 R08: 0000000000000003 R09: 000000000000ffff R10: 000000000000ffff R11: 0000000000000000 R12: ffff88802b28da00 R13: 00000000000000d0 R14: ffff88807e25b6d0 R15: ffff888023408000 FS: 0000555556a61300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e5b11eb6e8 CR3: 0000000027c1b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __netdev_start_xmit include/linux/netdevice.h:4900 [inline] netdev_start_xmit include/linux/netdevice.h:4914 [inline] __dev_direct_xmit+0x504/0x730 net/core/dev.c:4300 dev_direct_xmit include/linux/netdevice.h:3088 [inline] packet_xmit+0x20a/0x390 net/packet/af_packet.c:285 packet_snd net/packet/af_packet.c:3075 [inline] packet_sendmsg+0x31a0/0x5150 net/packet/af_packet.c:3107 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg+0xde/0x190 net/socket.c:747 __sys_sendto+0x23a/0x340 net/socket.c:2142 __do_sys_sendto net/socket.c:2154 [inline] __se_sys_sendto net/socket.c:2150 [inline] __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2150 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f123aaa1039 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc15d12058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f123aaa1039 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000020000040 R09: 0000000000000014 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f123aa648c0 R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000

vendor_unpatched cve-2023-53053: Unpatched CVEs for Ubuntu Linux (cve-2023-53053)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1054 advisory.

    A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking     configuration (redirecting egress packets to ingress using TC action mirred) a local unprivileged user     could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a     retransmission, resulting in a denial of service condition. (CVE-2022-4269)

    A NULL pointer dereference has been discovered in the Linux Kernel, in io_file_bitmap_get in     io_uring/filetable.c. (CVE-2023-1583)

    A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This     flaw allows an attacker to crash the system and possibly cause a kernel information lea (CVE-2023-1611)

    An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The     userspace data->block[0] variable was not capped to a number between 0-255 and was used as the size of a     memcpy, possibly writing beyond the end of dma_buffer. This flaw could allow a local privileged user to     crash the system or potentially achieve code execution. (CVE-2023-2194)

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

    dm stats: check for and propagate alloc_percpu failure (CVE-2023-53044)

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

    dm crypt: add cond_resched() to dmcrypt_write() (CVE-2023-53051)

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

    erspan: do not use skb_mac_header() in ndo_start_xmit() (CVE-2023-53053)

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

    fscrypt: destroy keyring after security_sb_delete() (CVE-2023-53055)

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

    igb: revert rtnl_lock() that causes deadlock (CVE-2023-53060)

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

    perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output     (CVE-2023-53065)

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

    mptcp: use the workqueue to destroy unaccepted sockets (CVE-2023-53072)

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

    perf/x86/amd/core: Always clear status for idx (CVE-2023-53073)

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

    xsk: Add missing overflow check in xdp_umem_reg (CVE-2023-53080)

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

    nfsd: don't replace page in rq_pages if it's a continuation of last page (CVE-2023-53083)

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

    mptcp: fix UaF in listener shutdown (CVE-2023-53088)

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

    tracing: Do not let histogram values have some modifiers (CVE-2023-53093)

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.

The version of kernel installed on the remote host is prior to 5.4.241-150.347. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2023-044 advisory.

    A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that     allows local users to create files for the XFS file-system with an unintended group ownership and with     group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a     certain group and is writable by a user who is not a member of this group. This can lead to excessive     permissions granted in case when they should not.  This vulnerability is similar to the previous     CVE-2018-13405 and adds the missed fix for the XFS. (CVE-2021-4037)

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

    tun: avoid double free in tun_free_netdev (CVE-2021-47082)

    A double-free flaw was found in the Linux kernel's TUN/TAP device driver functionality in how a user     registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw     allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-4744)

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

    gfs2: Always check inode size of inline inodes (CVE-2022-49739)

    A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race     problem. This flaw leads to a denial of service issue. (CVE-2023-0590)

    An out-of-bounds memory access flaw was found in the Linux kernel's XFS file system in how a user restores     an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or     potentially escalate their privileges on the system. (CVE-2023-2124)

    An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The     userspace data->block[0] variable was not capped to a number between 0-255 and was used as the size of a     memcpy, possibly writing beyond the end of dma_buffer. This flaw could allow a local privileged user to     crash the system or potentially achieve code execution. (CVE-2023-2194)

    do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading     to a race condition (with a resultant use-after-free or NULL pointer dereference). (CVE-2023-28466)

    The Linux kernel before 6.2.9 has a race condition and resultant use-after-free in     drivers/net/ethernet/qualcomm/emac/emac.c if a physically proximate attacker unplugs an emac based device.
    (CVE-2023-33203)

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

    nilfs2: fix kernel-infoleak in nilfs_ioctl_wrap_copy() (CVE-2023-53035)

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

    scsi: qla2xxx: Perform lockless command completion in abort path (CVE-2023-53041)

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

    dm stats: check for and propagate alloc_percpu failure (CVE-2023-53044)

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

    dm crypt: add cond_resched() to dmcrypt_write() (CVE-2023-53051)

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

    erspan: do not use skb_mac_header() in ndo_start_xmit() (CVE-2023-53053)

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

    igb: revert rtnl_lock() that causes deadlock (CVE-2023-53060)

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

    net: usb: smsc95xx: Limit packet length to skb->len (CVE-2023-53062)

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

    qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info (CVE-2023-53066)

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

    scsi: scsi_dh_alua: Fix memleak for 'qdata' in alua_activate() (CVE-2023-53078)

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

    ocfs2: fix data corruption after failed write (CVE-2023-53081)

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-160 advisory.

    A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking     configuration (redirecting egress packets to ingress using TC action mirred) a local unprivileged user     could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a     retransmission, resulting in a denial of service condition. (CVE-2022-4269)

    A NULL pointer dereference has been discovered in the Linux Kernel, in io_file_bitmap_get in     io_uring/filetable.c. (CVE-2023-1583)

    A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This     flaw allows an attacker to crash the system and possibly cause a kernel information lea (CVE-2023-1611)

    An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The     userspace data->block[0] variable was not capped to a number between 0-255 and was used as the size of a     memcpy, possibly writing beyond the end of dma_buffer. This flaw could allow a local privileged user to     crash the system or potentially achieve code execution. (CVE-2023-2194)

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

    dm crypt: add cond_resched() to dmcrypt_write() (CVE-2023-53051)

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

    erspan: do not use skb_mac_header() in ndo_start_xmit() (CVE-2023-53053)

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

    perf/x86/amd/core: Always clear status for idx (CVE-2023-53073)

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

    xsk: Add missing overflow check in xdp_umem_reg (CVE-2023-53080)

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

    nfsd: don't replace page in rq_pages if it's a continuation of last page (CVE-2023-53083)

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

    tracing: Do not let histogram values have some modifiers (CVE-2023-53093)

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.

The version of kernel installed on the remote host is prior to 5.10.177-158.645. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-029 advisory.

    A use-after-free vulnerability was found in __nfs42_ssc_open() in fs/nfs/nfs4file.c in the Linux kernel.
    This flaw allows an attacker to conduct a remote denial of service. (CVE-2022-4379)

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

    gfs2: Always check inode size of inline inodes (CVE-2022-49739)

    A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This     flaw allows an attacker to crash the system and possibly cause a kernel information lea (CVE-2023-1611)

    An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The     userspace data->block[0] variable was not capped to a number between 0-255 and was used as the size of a     memcpy, possibly writing beyond the end of dma_buffer. This flaw could allow a local privileged user to     crash the system or potentially achieve code execution. (CVE-2023-2194)

    do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading     to a race condition (with a resultant use-after-free or NULL pointer dereference). (CVE-2023-28466)

    The Linux kernel before 6.2.9 has a race condition and resultant use-after-free in     drivers/net/ethernet/qualcomm/emac/emac.c if a physically proximate attacker unplugs an emac based device.
    (CVE-2023-33203)

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

    nilfs2: fix kernel-infoleak in nilfs_ioctl_wrap_copy() (CVE-2023-53035)

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

    scsi: qla2xxx: Perform lockless command completion in abort path (CVE-2023-53041)

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

    dm stats: check for and propagate alloc_percpu failure (CVE-2023-53044)

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

    dm crypt: add cond_resched() to dmcrypt_write() (CVE-2023-53051)

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

    erspan: do not use skb_mac_header() in ndo_start_xmit() (CVE-2023-53053)

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

    net/mlx5: E-Switch, Fix an Oops in error handling code (CVE-2023-53058)

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

    igb: revert rtnl_lock() that causes deadlock (CVE-2023-53060)

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

    net: usb: smsc95xx: Limit packet length to skb->len (CVE-2023-53062)

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

    perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output     (CVE-2023-53065)

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

    qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info (CVE-2023-53066)

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

    scsi: scsi_dh_alua: Fix memleak for 'qdata' in alua_activate() (CVE-2023-53078)

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

    net/mlx5: Fix steering rules cleanup (CVE-2023-53079)

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

    xsk: Add missing overflow check in xdp_umem_reg (CVE-2023-53080)

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

    ocfs2: fix data corruption after failed write (CVE-2023-53081)

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.

The version of kernel installed on the remote host is prior to 5.15.106-64.140. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2023-016 advisory.

    A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking     configuration (redirecting egress packets to ingress using TC action mirred) a local unprivileged user     could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a     retransmission, resulting in a denial of service condition. (CVE-2022-4269)

    A use-after-free vulnerability was found in __nfs42_ssc_open() in fs/nfs/nfs4file.c in the Linux kernel.
    This flaw allows an attacker to conduct a remote denial of service. (CVE-2022-4379)

    A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This     flaw allows an attacker to crash the system and possibly cause a kernel information lea (CVE-2023-1611)

    An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The     userspace data->block[0] variable was not capped to a number between 0-255 and was used as the size of a     memcpy, possibly writing beyond the end of dma_buffer. This flaw could allow a local privileged user to     crash the system or potentially achieve code execution. (CVE-2023-2194)

    do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading     to a race condition (with a resultant use-after-free or NULL pointer dereference). (CVE-2023-28466)

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

    dm stats: check for and propagate alloc_percpu failure (CVE-2023-53044)

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

    dm crypt: add cond_resched() to dmcrypt_write() (CVE-2023-53051)

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

    erspan: do not use skb_mac_header() in ndo_start_xmit() (CVE-2023-53053)

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

    fscrypt: destroy keyring after security_sb_delete() (CVE-2023-53055)

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

    net/mlx5: E-Switch, Fix an Oops in error handling code (CVE-2023-53058)

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

    igb: revert rtnl_lock() that causes deadlock (CVE-2023-53060)

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

    perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output     (CVE-2023-53065)

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

    net/mlx5: Fix steering rules cleanup (CVE-2023-53079)

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

    xsk: Add missing overflow check in xdp_umem_reg (CVE-2023-53080)

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

    ocfs2: fix data corruption after failed write (CVE-2023-53081)

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.

ID	Name	Product	Family	Severity
241778	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1054)	Nessus	Amazon Linux Local Security Checks	medium
174976	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2023-044)	Nessus	Amazon Linux Local Security Checks	high
174575	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-160)	Nessus	Amazon Linux Local Security Checks	medium
174434	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2023-029)	Nessus	Amazon Linux Local Security Checks	high
174430	Amazon Linux 2 : kernel (ALASKERNEL-5.15-2023-016)	Nessus	Amazon Linux Local Security Checks	high

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