Summary
USN-5759-1 fixed vulnerabilities in LibBPF. This update provides the
corresponding updates for Ubuntu 20.04 ESM.
Original advisory details:
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.
(CVE-2021-45940, CVE-2021-45941, CVE-2022-3533)
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. (CVE-2022-3534, CVE-2022-3606)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | libbpf | 0.5.0-1~ubuntu20.04.1+esm1 |
Vulnerabilities 2
-
Medium 5.5
Linux Kernel libbpf btf_dump.c btf_dump_name_dups use after free
A vulnerability has been found in Linux Kernel up to 5.10.162/5.15.85/6.0.15/6.1.1. The impacted element is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. Upgrading to ve…
-
Low 3.5
Linux Kernel BPF libbpf.c find_prog_by_sec_insn null pointer dereference
A vulnerability was found in Linux Kernel. It has been classified as problematic. This affects the function find_prog_by_sec_insn of the file tools/lib/bpf/libbpf.c of the component BPF. The manipulation leads to null pointer dereference. It is recommended to…