{ "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-27170", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "refsource": "MISC", "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.8", "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.8" }, { "refsource": "MISC", "name": "https://www.openwall.com/lists/oss-security/2021/03/19/2", "url": "https://www.openwall.com/lists/oss-security/2021/03/19/2" }, { "refsource": "MISC", "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f232326f6966cf2a1d1db7bc917a4ce5f9f55f76", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f232326f6966cf2a1d1db7bc917a4ce5f9f55f76" } ] } }