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CVE-2020-10751

Status Candidate

Overview

A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.

Related Files

Ubuntu Security Notice USN-4413-1
Posted Jul 3, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4413-1 - Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of service. It was discovered that the SCSI generic driver in the Linux kernel did not properly handle certain error conditions correctly. A local privileged attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-10711, CVE-2020-10751, CVE-2020-12768, CVE-2020-12770, CVE-2020-13143
SHA-256 | 7a63d1c745b27c7f807d07be0abf46a26c852cbe525f46d1aa4f51136fa76590
Ubuntu Security Notice USN-4412-1
Posted Jul 3, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4412-1 - Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of service. It was discovered that the SCSI generic driver in the Linux kernel did not properly handle certain error conditions correctly. A local privileged attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-10711, CVE-2020-10751, CVE-2020-12768, CVE-2020-12770, CVE-2020-13143
SHA-256 | 4ff2368c3d486b4136ca213bbadd144700d05b48e79abfc439bdeeb2dc463585
Debian Security Advisory 4698-1
Posted Jun 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4698-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2019-19319, CVE-2019-19462, CVE-2019-19768, CVE-2019-20806, CVE-2019-20811, CVE-2019-2182, CVE-2019-5108, CVE-2020-0543, CVE-2020-10711, CVE-2020-10732, CVE-2020-10751, CVE-2020-10757, CVE-2020-10942, CVE-2020-11494
SHA-256 | 6b0461d5fdc0442553e93411732b13c0f292cb8ee0cf3b5b3b0228efca950d91
Debian Security Advisory 4699-1
Posted Jun 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4699-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2019-19462, CVE-2019-3016, CVE-2020-0543, CVE-2020-10711, CVE-2020-10732, CVE-2020-10751, CVE-2020-10757, CVE-2020-12114, CVE-2020-12464, CVE-2020-12768, CVE-2020-12770, CVE-2020-13143
SHA-256 | 5c9b08156b9df614e0b461fd3ef88e61fe9ad766f6bfda59ca0dca4bd59df181
Ubuntu Security Notice USN-4391-1
Posted Jun 10, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4391-1 - It was discovered that the ext4 file system implementation in the Linux kernel did not properly handle setxattr operations in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that memory contents previously stored in microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly exposed to processes on the same or different processor cores. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-19319, CVE-2020-0543, CVE-2020-10751, CVE-2020-12114, CVE-2020-12464, CVE-2020-12769, CVE-2020-12826, CVE-2020-1749
SHA-256 | e0a6c38a113dc261822095ed2e1b728d5bf4288b2229b470472eb7d9064118a4
Ubuntu Security Notice USN-4389-1
Posted Jun 10, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4389-1 - It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive information. It was discovered that memory contents previously stored in microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly exposed to processes on the same or different processor cores. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-0067, CVE-2020-0543, CVE-2020-10751, CVE-2020-12114, CVE-2020-12464, CVE-2020-12659
SHA-256 | f91b1d179a358a863ed6403af909ce4727dd59ab224a69ff38ddbe33c0f7103a
Ubuntu Security Notice USN-4390-1
Posted Jun 10, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4390-1 - It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive information. It was discovered that memory contents previously stored in microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly exposed to processes on the same or different processor cores. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-0067, CVE-2020-0543, CVE-2020-10751, CVE-2020-12114, CVE-2020-12464, CVE-2020-1749
SHA-256 | e5d410bb0a6f3e7d3022679274328cddc80018c6f7dbebfd3e18c23532085b9d
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