First published: Wed Jun 23 2021(Updated: )
Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. (CVE-2021-3609) Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly enforce limits for pointer operations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33200) Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly clear received fragments from memory in some situations. A physically proximate attacker could possibly use this issue to inject packets or expose sensitive information. (CVE-2020-24586) Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled encrypted fragments. A physically proximate attacker could possibly use this issue to decrypt fragments. (CVE-2020-24587) Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled certain malformed frames. If a user were tricked into connecting to a malicious server, a physically proximate attacker could use this issue to inject packets. (CVE-2020-24588) Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled EAPOL frames from unauthenticated senders. A physically proximate attacker could inject malicious packets to cause a denial of service (system crash). (CVE-2020-26139) Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly verify certain fragmented frames. A physically proximate attacker could possibly use this issue to inject or decrypt packets. (CVE-2020-26141) Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation accepted plaintext fragments in certain situations. A physically proximate attacker could use this issue to inject packets. (CVE-2020-26145) Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147) Or Cohen discovered that the SCTP implementation in the Linux kernel contained a race condition in some situations, leading to a use-after-free condition. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23133) Or Cohen and Nadav Markus discovered a use-after-free vulnerability in the nfc implementation in the Linux kernel. A privileged local attacker could use this issue to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23134) Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly prevent speculative loads in certain situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-31829) It was discovered that a race condition in the kernel Bluetooth subsystem could lead to use-after-free of slab objects. An attacker could use this issue to possibly execute arbitrary code. (CVE-2021-32399) It was discovered that a use-after-free existed in the Bluetooth HCI driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33034) It was discovered that an out-of-bounds (OOB) memory access flaw existed in the f2fs module of the Linux kernel. A local attacker could use this issue to cause a denial of service (system crash). (CVE-2021-3506)
Affected Software | Affected Version | How to fix |
---|---|---|
All of | ||
ubuntu/linux-image-gkeop-5.4 | <5.4.0.1018.21 | 5.4.0.1018.21 |
=20.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1038-raspi | <5.4.0-1038.41 | 5.4.0-1038.41 |
=20.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1051-aws | <5.4.0-1051.53 | 5.4.0-1051.53 |
=20.04 | ||
All of | ||
ubuntu/linux-image-gke | <5.4.0.1046.55 | 5.4.0.1046.55 |
=20.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1048-oracle | <5.4.0-1048.52 | 5.4.0-1048.52 |
=20.04 | ||
All of | ||
ubuntu/linux-image-oem-osp1 | <5.4.0.77.80 | 5.4.0.77.80 |
=20.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1018-gkeop | <5.4.0-1018.19 | 5.4.0-1018.19 |
=20.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1046-gke | <5.4.0-1046.48 | 5.4.0-1046.48 |
=20.04 | ||
All of | ||
ubuntu/linux-image-oracle-lts-20.04 | <5.4.0.1048.48 | 5.4.0.1048.48 |
=20.04 | ||
All of | ||
ubuntu/linux-image-gkeop | <5.4.0.1018.21 | 5.4.0.1018.21 |
=20.04 | ||
All of | ||
ubuntu/linux-image-virtual | <5.4.0.77.80 | 5.4.0.77.80 |
=20.04 | ||
All of | ||
ubuntu/linux-image-raspi | <5.4.0.1038.73 | 5.4.0.1038.73 |
=20.04 | ||
All of | ||
ubuntu/linux-image-gcp-lts-20.04 | <5.4.0.1046.55 | 5.4.0.1046.55 |
=20.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1051-azure | <5.4.0-1051.53 | 5.4.0-1051.53 |
=20.04 | ||
All of | ||
ubuntu/linux-image-generic | <5.4.0.77.80 | 5.4.0.77.80 |
=20.04 | ||
All of | ||
ubuntu/linux-image-aws-lts-20.04 | <5.4.0.1051.53 | 5.4.0.1051.53 |
=20.04 | ||
All of | ||
ubuntu/linux-image-gke-5.4 | <5.4.0.1046.55 | 5.4.0.1046.55 |
=20.04 | ||
All of | ||
ubuntu/linux-image-oem | <5.4.0.77.80 | 5.4.0.77.80 |
=20.04 | ||
All of | ||
ubuntu/linux-image-raspi2 | <5.4.0.1038.73 | 5.4.0.1038.73 |
=20.04 | ||
All of | ||
ubuntu/linux-image-azure-lts-20.04 | <5.4.0.1051.49 | 5.4.0.1051.49 |
=20.04 | ||
All of | ||
ubuntu/linux-image-generic-lpae | <5.4.0.77.80 | 5.4.0.77.80 |
=20.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-77-lowlatency | <5.4.0-77.86 | 5.4.0-77.86 |
=20.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-77-generic | <5.4.0-77.86 | 5.4.0-77.86 |
=20.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1046-gcp | <5.4.0-1046.49 | 5.4.0-1046.49 |
=20.04 | ||
All of | ||
ubuntu/linux-image-lowlatency | <5.4.0.77.80 | 5.4.0.77.80 |
=20.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-77-generic-lpae | <5.4.0-77.86 | 5.4.0-77.86 |
=20.04 | ||
All of | ||
ubuntu/linux-image-gkeop-5.4 | <5.4.0.1018.19~18.04.19 | 5.4.0.1018.19~18.04.19 |
=18.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1038-raspi | <5.4.0-1038.41~18.04.1 | 5.4.0-1038.41~18.04.1 |
=18.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1051-aws | <5.4.0-1051.53~18.04.1 | 5.4.0-1051.53~18.04.1 |
=18.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1048-oracle | <5.4.0-1048.52~18.04.1 | 5.4.0-1048.52~18.04.1 |
=18.04 | ||
All of | ||
ubuntu/linux-image-oem-osp1 | <5.4.0.77.86~18.04.69 | 5.4.0.77.86~18.04.69 |
=18.04 | ||
All of | ||
ubuntu/linux-image-oracle | <5.4.0.1048.52~18.04.30 | 5.4.0.1048.52~18.04.30 |
=18.04 | ||
All of | ||
ubuntu/linux-image-generic-hwe-18.04 | <5.4.0.77.86~18.04.69 | 5.4.0.77.86~18.04.69 |
=18.04 | ||
All of | ||
ubuntu/linux-image-azure | <5.4.0.1051.30 | 5.4.0.1051.30 |
=18.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1018-gkeop | <5.4.0-1018.19~18.04.1 | 5.4.0-1018.19~18.04.1 |
=18.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1046-gke | <5.4.0-1046.48~18.04.1 | 5.4.0-1046.48~18.04.1 |
=18.04 | ||
All of | ||
ubuntu/linux-image-generic-lpae-hwe-18.04 | <5.4.0.77.86~18.04.69 | 5.4.0.77.86~18.04.69 |
=18.04 | ||
All of | ||
ubuntu/linux-image-snapdragon-hwe-18.04 | <5.4.0.77.86~18.04.69 | 5.4.0.77.86~18.04.69 |
=18.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1051-azure | <5.4.0-1051.53~18.04.1 | 5.4.0-1051.53~18.04.1 |
=18.04 | ||
All of | ||
ubuntu/linux-image-lowlatency-hwe-18.04 | <5.4.0.77.86~18.04.69 | 5.4.0.77.86~18.04.69 |
=18.04 | ||
All of | ||
ubuntu/linux-image-virtual-hwe-18.04 | <5.4.0.77.86~18.04.69 | 5.4.0.77.86~18.04.69 |
=18.04 | ||
All of | ||
ubuntu/linux-image-gke-5.4 | <5.4.0.1046.48~18.04.12 | 5.4.0.1046.48~18.04.12 |
=18.04 | ||
All of | ||
ubuntu/linux-image-oem | <5.4.0.77.86~18.04.69 | 5.4.0.77.86~18.04.69 |
=18.04 | ||
All of | ||
ubuntu/linux-image-aws | <5.4.0.1051.33 | 5.4.0.1051.33 |
=18.04 | ||
All of | ||
ubuntu/linux-image-raspi-hwe-18.04 | <5.4.0.1038.40 | 5.4.0.1038.40 |
=18.04 | ||
All of | ||
ubuntu/linux-image-gcp | <5.4.0.1046.33 | 5.4.0.1046.33 |
=18.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-77-lowlatency | <5.4.0-77.86~18.04.1 | 5.4.0-77.86~18.04.1 |
=18.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-77-generic | <5.4.0-77.86~18.04.1 | 5.4.0-77.86~18.04.1 |
=18.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-1046-gcp | <5.4.0-1046.49~18.04.1 | 5.4.0-1046.49~18.04.1 |
=18.04 | ||
All of | ||
ubuntu/linux-image-5.4.0-77-generic-lpae | <5.4.0-77.86~18.04.1 | 5.4.0-77.86~18.04.1 |
=18.04 |
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(Contains the following vulnerabilities)