All the vulnerabilites related to Linux Kernel - Linux kernel
cve-2019-14835
Vulnerability from cvelistv5
Published
2019-09-17 15:09
Modified
2024-08-05 00:26
Severity ?
EPSS score ?
Summary
A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux Kernel | Linux kernel |
Version: from version 2.6.34 to 5.2.x |
|
|
|||
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cve-2022-2503
Vulnerability from cvelistv5
Published
2022-08-12 00:00
Modified
2024-08-03 00:39
Severity ?
EPSS score ?
Summary
Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux Kernel | Linux Kernel |
Version: unspecified < 4caae58406f8ceb741603eee460d79bacca9b1b5 |
|
|
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cve-2021-23133
Vulnerability from cvelistv5
Published
2021-04-22 18:00
Modified
2024-09-16 19:04
Severity ?
EPSS score ?
Summary
A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock then an element is removed from the auto_asconf_splist list without any proper locking. This can be exploited by an attacker with network service privileges to escalate to root or from the context of an unprivileged user directly if a BPF_CGROUP_INET_SOCK_CREATE is attached which denies creation of some SCTP socket.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux Kernel | Linux Kernel |
Version: unspecified < 5.12-rc8 |
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cve-2021-22543
Vulnerability from cvelistv5
Published
2021-05-26 10:30
Modified
2024-09-16 23:26
Severity ?
EPSS score ?
Summary
An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation.
References
| ▼ | URL | Tags |
|---|---|---|
| https://github.com/google/security-research/security/advisories/GHSA-7wq5-phmq-m584 | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2021/06/26/1 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4G5YBUVEPHZYXMKNGBZ3S6INFCTEEL4E/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ROQIXQB7ZAWI3KSGSHR6H5RDUWZI775S/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.netapp.com/advisory/ntap-20210708-0002/ | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html | mailing-list, x_refsource_MLIST |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux Kernel | Linux Kernel |
Version: add6a0cd1c5ba51b201e1361b05a5df817083618 |
|
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cve-2020-16120
Vulnerability from cvelistv5
Published
2021-02-10 19:45
Modified
2024-09-16 18:49
Severity ?
EPSS score ?
Summary
Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a mountpoint controlled by the user, like a removable device. This was introduced in kernel version 4.19 by commit d1d04ef ("ovl: stack file ops"). This was fixed in kernel version 5.8 by commits 56230d9 ("ovl: verify permissions in ovl_path_open()"), 48bd024 ("ovl: switch to mounter creds in readdir") and 05acefb ("ovl: check permission to open real file"). Additionally, commits 130fdbc ("ovl: pass correct flags for opening real directory") and 292f902 ("ovl: call secutiry hook in ovl_real_ioctl()") in kernel 5.8 might also be desired or necessary. These additional commits introduced a regression in overlay mounts within user namespaces which prevented access to files with ownership outside of the user namespace. This regression was mitigated by subsequent commit b6650da ("ovl: do not fail because of O_NOATIMEi") in kernel 5.11.
References
| ▼ | URL | Tags |
|---|---|---|
| https://ubuntu.com/USN-4576-1 | vendor-advisory, x_refsource_UBUNTU | |
| https://ubuntu.com/USN-4577-1 | vendor-advisory, x_refsource_UBUNTU | |
| https://ubuntu.com/USN-4578-1 | vendor-advisory, x_refsource_UBUNTU | |
| https://www.openwall.com/lists/oss-security/2020/10/14/2 | x_refsource_CONFIRM | |
| https://launchpad.net/bugs/1894980 | vendor-advisory, x_refsource_UBUNTU | |
| https://launchpad.net/bugs/1900141 | vendor-advisory, x_refsource_UBUNTU | |
| https://git.kernel.org/linus/56230d956739b9cb1cbde439d76227d77979a04d | x_refsource_CONFIRM | |
| https://git.kernel.org/linus/48bd024b8a40d73ad6b086de2615738da0c7004f | x_refsource_CONFIRM | |
| https://git.kernel.org/linus/05acefb4872dae89e772729efb194af754c877e8 | x_refsource_CONFIRM | |
| https://git.kernel.org/linus/d1d04ef8572bc8c22265057bd3d5a79f223f8f52 | x_refsource_CONFIRM | |
| https://git.kernel.org/linus/b6650dab404c701d7fe08a108b746542a934da84 | x_refsource_CONFIRM |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux kernel | Linux kernel |
Version: 5.11-stable < 5.11.0 |
|
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cve-2020-8835
Vulnerability from cvelistv5
Published
2020-04-02 18:00
Modified
2024-09-17 02:15
Severity ?
EPSS score ?
Summary
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References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux kernel | Linux kernel |
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cve-2021-23134
Vulnerability from cvelistv5
Published
2021-05-12 22:45
Modified
2024-09-17 03:38
Severity ?
EPSS score ?
Summary
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.
References
| ▼ | URL | Tags |
|---|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d | x_refsource_MISC | |
| https://www.openwall.com/lists/oss-security/2021/05/11/4 | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html | mailing-list, x_refsource_MLIST | |
| https://security.netapp.com/advisory/ntap-20210625-0007/ | x_refsource_CONFIRM |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux Kernel | Linux Kernel |
Version: unspecified < 5.12.4 |
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cve-2022-2327
Vulnerability from cvelistv5
Published
2022-07-22 00:00
Modified
2024-08-03 00:32
Severity ?
EPSS score ?
Summary
io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux Kernel | Linux Kernel |
Version: unspecified < df3f3bb5059d20ef094d6b2f0256c4bf4127a859 |
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cve-2020-8834
Vulnerability from cvelistv5
Published
2020-04-09 22:10
Modified
2024-09-16 22:03
Severity ?
EPSS score ?
Summary
KVM in the Linux kernel on Power8 processors has a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability run code in kernel space of a guest VM can cause the host kernel to panic. There were two commits that, according to the reporter, introduced the vulnerability: f024ee098476 ("KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures") 87a11bb6a7f7 ("KVM: PPC: Book3S HV: Work around XER[SO] bug in fake suspend mode") The former landed in 4.8, the latter in 4.17. This was fixed without realizing the impact in 4.18 with the following three commits, though it's believed the first is the only strictly necessary commit: 6f597c6b63b6 ("KVM: PPC: Book3S PR: Add guest MSR parameter for kvmppc_save_tm()/kvmppc_restore_tm()") 7b0e827c6970 ("KVM: PPC: Book3S HV: Factor fake-suspend handling out of kvmppc_save/restore_tm") 009c872a8bc4 ("KVM: PPC: Book3S PR: Move kvmppc_save_tm/kvmppc_restore_tm to separate file")
References
| ▼ | URL | Tags |
|---|---|---|
| https://www.openwall.com/lists/oss-security/2020/04/06/2 | x_refsource_MISC | |
| https://usn.ubuntu.com/usn/usn-4318-1 | x_refsource_MISC | |
| https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1867717 | x_refsource_MISC | |
| https://usn.ubuntu.com/4318-1/ | vendor-advisory, x_refsource_UBUNTU | |
| http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html | vendor-advisory, x_refsource_SUSE |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux kernel | Linux kernel |
Version: 4.8 < unspecified Version: unspecified < 4.18 |
|
|
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"value": "KVM in the Linux kernel on Power8 processors has a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability run code in kernel space of a guest VM can cause the host kernel to panic. There were two commits that, according to the reporter, introduced the vulnerability: f024ee098476 (\"KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures\") 87a11bb6a7f7 (\"KVM: PPC: Book3S HV: Work around XER[SO] bug in fake suspend mode\") The former landed in 4.8, the latter in 4.17. This was fixed without realizing the impact in 4.18 with the following three commits, though it\u0027s believed the first is the only strictly necessary commit: 6f597c6b63b6 (\"KVM: PPC: Book3S PR: Add guest MSR parameter for kvmppc_save_tm()/kvmppc_restore_tm()\") 7b0e827c6970 (\"KVM: PPC: Book3S HV: Factor fake-suspend handling out of kvmppc_save/restore_tm\") 009c872a8bc4 (\"KVM: PPC: Book3S PR: Move kvmppc_save_tm/kvmppc_restore_tm to separate file\")"
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"baseScore": 6.5,
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"confidentialityImpact": "NONE",
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"scope": "CHANGED",
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{
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"url": "http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html"
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"value": "Apply the following three Linux kernel commits, though possibly only the first commit is strictly necessary: \n \n 6f597c6b63b6 (\"KVM: PPC: Book3S PR: Add guest MSR parameter for kvmppc_save_tm()/kvmppc_restore_tm()\")\n 7b0e827c6970 (\"KVM: PPC: Book3S HV: Factor fake-suspend handling out of kvmppc_save/restore_tm\")\n 009c872a8bc4 (\"KVM: PPC: Book3S PR: Move kvmppc_save_tm/kvmppc_restore_tm to separate file\")"
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cve-2018-6555
Vulnerability from cvelistv5
Published
2018-09-04 18:00
Modified
2024-09-16 23:42
Severity ?
EPSS score ?
Summary
The irda_setsockopt function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c in the Linux kernel before 4.17 allows local users to cause a denial of service (ias_object use-after-free and system crash) or possibly have unspecified other impact via an AF_IRDA socket.
References
| ▼ | URL | Tags |
|---|---|---|
| https://usn.ubuntu.com/3776-1/ | vendor-advisory, x_refsource_UBUNTU | |
| https://usn.ubuntu.com/3776-2/ | vendor-advisory, x_refsource_UBUNTU | |
| https://www.spinics.net/lists/stable/msg255035.html | mailing-list, x_refsource_MLIST | |
| https://usn.ubuntu.com/3777-1/ | vendor-advisory, x_refsource_UBUNTU | |
| https://usn.ubuntu.com/3775-1/ | vendor-advisory, x_refsource_UBUNTU | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2018/dsa-4308 | vendor-advisory, x_refsource_DEBIAN | |
| https://usn.ubuntu.com/3775-2/ | vendor-advisory, x_refsource_UBUNTU | |
| http://www.securityfocus.com/bid/105304 | vdb-entry, x_refsource_BID | |
| https://usn.ubuntu.com/3777-2/ | vendor-advisory, x_refsource_UBUNTU | |
| https://www.spinics.net/lists/stable/msg255031.html | mailing-list, x_refsource_MLIST | |
| https://usn.ubuntu.com/3777-3/ | vendor-advisory, x_refsource_UBUNTU |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux Kernel | Linux Kernel |
Version: before 4.17 |
|
|
|||
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cve-2018-6554
Vulnerability from cvelistv5
Published
2018-09-04 18:00
Modified
2024-09-17 01:41
Severity ?
EPSS score ?
Summary
Memory leak in the irda_bind function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c in the Linux kernel before 4.17 allows local users to cause a denial of service (memory consumption) by repeatedly binding an AF_IRDA socket.
References
| ▼ | URL | Tags |
|---|---|---|
| https://usn.ubuntu.com/3776-1/ | vendor-advisory, x_refsource_UBUNTU | |
| https://usn.ubuntu.com/3776-2/ | vendor-advisory, x_refsource_UBUNTU | |
| https://usn.ubuntu.com/3777-1/ | vendor-advisory, x_refsource_UBUNTU | |
| https://usn.ubuntu.com/3775-1/ | vendor-advisory, x_refsource_UBUNTU | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html | mailing-list, x_refsource_MLIST | |
| https://www.spinics.net/lists/stable/msg255030.html | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2018/dsa-4308 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/105302 | vdb-entry, x_refsource_BID | |
| https://usn.ubuntu.com/3775-2/ | vendor-advisory, x_refsource_UBUNTU | |
| https://usn.ubuntu.com/3777-2/ | vendor-advisory, x_refsource_UBUNTU | |
| https://usn.ubuntu.com/3777-3/ | vendor-advisory, x_refsource_UBUNTU | |
| https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html | mailing-list, x_refsource_MLIST | |
| https://www.spinics.net/lists/stable/msg255034.html | mailing-list, x_refsource_MLIST |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Linux Kernel | Linux Kernel |
Version: before 4.17 |
|
|
|||
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