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CVE-2021-45940

Status Candidate

Overview

libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (4 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).

Related Files

Ubuntu Security Notice USN-5759-1
Posted Dec 5, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5759-1 - It was discovered that LibBPF incorrectly handled certain memory operations under certain circumstances. An attacker could possibly use this issue to cause LibBPF to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.10. It was discovered that LibBPF incorrectly handled certain memory operations under certain circumstances. An attacker could possibly use this issue to cause LibBPF to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-45940, CVE-2022-3606
SHA-256 | 0dd1a6726e82d29eb6519819607159abe89fea415bb410c0369a2119b10bab08
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