Mehrere Probleme in Linux
ID: | USN-4948-1 |
Distribution: | Ubuntu |
Plattformen: | Ubuntu 20.04 LTS |
Datum: | Mi, 12. Mai 2021, 07:32 |
Referenzen: | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3490
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28972 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3489 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25670 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31916 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28688 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29264 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29647 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28951 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29657 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25671 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29646 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25672 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28971 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29650 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29649 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29266 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3491 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28952 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28964 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3483 |
Applikationen: | Linux |
Originalnachricht |
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--===============5412977688963116176== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="3d6H7mg5Rh32vZAX" Content-Disposition: inline --3d6H7mg5Rh32vZAX Content-Type: text/plain; charset=utf-8 Content-Disposition: inlin Content-Transfer-Encoding: quoted-printable ========================================================================== Ubuntu Security Notice USN-4948-1 May 11, 2021 linux-oem-5.10 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-oem-5.10: Linux kernel for OEM systems Details: Ryota Shiga discovered that the eBPF implementation in the Linux kernel did not properly verify that a BPF program only reserved as much memory for a ring buffer as was allocated. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3489) Manfred Paul discovered that the eBPF implementation in the Linux kernel did not properly track bounds on bitwise operations. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3490) Billy Jheng Bing-Jhong discovered that the io_uring implementation of the Linux kernel did not properly enforce the MAX_RW_COUNT limit in some situations. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3491) Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-25670) Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2020-25671, CVE-2020-25672) It was discovered that the Xen paravirtualization backend in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2021-28688) It was discovered that the io_uring subsystem in the Linux kernel contained a race condition leading to a deadlock condition. A local attacker could use this to cause a denial of service. (CVE-2021-28951) John Stultz discovered that the audio driver for Qualcomm SDM845 systems in the Linux kernel did not properly validate port ID numbers. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-28952) Zygo Blaxell discovered that the btrfs file system implementation in the Linux kernel contained a race condition during certain cloning operations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-28964) Vince Weaver discovered that the perf subsystem in the Linux kernel did not properly handle certain PEBS records properly for some Intel Haswell processors. A local attacker could use this cause a denial of service (system crash). (CVE-2021-28971) It was discovered that the RPA PCI Hotplug driver implementation in the Linux kernel did not properly handle device name writes via sysfs, leading to a buffer overflow. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-28972) It was discovered that the Freescale Gianfar Ethernet driver for the Linux kernel did not properly handle receive queue overrun when jumbo frames were enabled in some situations. An attacker could use this to cause a denial of service (system crash). (CVE-2021-29264) It was discovered that the vDPA backend virtio driver in the Linux kernel contained a use-after-free vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-29266) It was discovered that the TIPC protocol implementation in the Linux kernel did not properly validate passed encryption key sizes. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-29646) It was discovered that the Qualcomm IPC router implementation in the Linux kernel did not properly initialize memory passed to user space. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-29647) It was discovered that the BPF user mode driver implementation in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2021-29649) It was discovered that a race condition existed in the netfilter subsystem of the Linux kernel when replacing tables. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-29650) Felix Wilhelm discovered that the KVM implementation in the Linux kernel for AMD processors contained race conditions on nested VMCB controls. A local attacker in a guest vm could possibly use this to gain elevated privileges. (CVE-2021-29657) Dan Carpenter discovered that the block device manager (dm) implementation in the Linux kernel contained a buffer overflow in the ioctl for listing devices. A privileged local attacker could use this to cause a denial of service (system crash). (CVE-2021-31916) 马å²å® discovered that the IEEE 1394 (Firewire) nosy packet sniffer driver in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3483) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.10.0-1026-oem 5.10.0-1026.27 linux-image-oem-20.04b 5.10.0.1026.27 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-4948-1 CVE-2020-25670, CVE-2020-25671, CVE-2020-25672, CVE-2021-28688, CVE-2021-28951, CVE-2021-28952, CVE-2021-28964, CVE-2021-28971, CVE-2021-28972, CVE-2021-29264, CVE-2021-29266, CVE-2021-29646, CVE-2021-29647, CVE-2021-29649, CVE-2021-29650, CVE-2021-29657, CVE-2021-31916, CVE-2021-3483, CVE-2021-3489, CVE-2021-3490, CVE-2021-3491 Package Information: https://launchpad.net/ubuntu/+source/linux-oem-5.10/5.10.0-1026.27 --3d6H7mg5Rh32vZAX Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpgY7tWAjCaQ8jrvULwmejQBegfQFAmCbDUgACgkQLwmejQBe gfSwWA/8CjrOtVsYePt6R9pKnuBU4yd156G6NzmcGNm3oOpo0vxhzCSjCWXLpSI0 rygWUQWbIRGDx9I2ohacHKt9LLaPYD94REw1yV0VlOGbNv9ZJ3Ke2zDUF9iMI8Df cJgQGuz46m2Lc6MHS20p+DZBt33vc1Bh5LxHNFuwiQe2DQzCgVcP3pT6PMxwMafp 7Ks81kLbLzgJOtqYzea2eJHvDI83QAAI1iW9N/jl9jgsL76DkMSO/jXnRELTPkVW TWwd/NfRUUFsX8IR/3gjjdoqwU1KOv3/S8cBvDZbblVOHwkUMHxBh/emz1xpv6Rw vWPr20n1yBfB2sPIW4Hl6WexlAvFVP2yqdDcCZzafbkF9hb8gvPvHKiuCWj3f52w QyFQXwHe/wfX1XxsQjxbAFD+b1jmfRXIcUIYvURj9oDENrx1McyZEq/L8IwqS65W stNdyK2cp5vTWXs67xn0QDSWewVHKiN5zIfxJIMFcH+2bLnI846/5Si71XHOUdux mWNImgbekuohuWTe+ns2n0AmKLiemu4UbkVEzwf10KsOuWZRJGLyhvIDLiUwneTH UbWzuSNP6bJSYF3LUzfWCI/E2Uydlxna+KN2c12IGoh+Fw5UCGYwno2vWB83YsdQ brzu4YJGroV3GGp0voqn4dThkLMGjJNmvntWLLM3Mdv/kkmbdJs= =B0kD -----END PGP SIGNATURE----- --3d6H7mg5Rh32vZAX-- --===============5412977688963116176== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5 LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj dXJpdHktYW5ub3VuY2UK --===============5412977688963116176==-- |