{"cve_id":"CVE-2017-1000253","published":"2017-10-05T01:29:04.790000+00:00","last_modified":"2026-06-17T00:58:59.460000+00:00","vuln_status":"Analyzed","description":"Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux 3.10.77 in May 2015), but it was not recognized as a security threat. With CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE enabled, and a normal top-down address allocation strategy, load_elf_binary() will attempt to map a PIE binary into an address range immediately below mm->mmap_base. Unfortunately, load_elf_ binary() does not take account of the need to allocate sufficient space for the entire binary which means that, while the first PT_LOAD segment is mapped below mm->mmap_base, the subsequent PT_LOAD segment(s) end up being mapped above mm->mmap_base into the are that is supposed to be the \"gap\" between the stack and the binary.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","base_score":7.8,"base_severity":"HIGH","attack_vector":"LOCAL","privileges_req":"LOW","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-119"],"in_kev":true,"kev_date_added":"2024-09-09","kev_ransomware":true,"epss_score":0.10695,"epss_percentile":0.95814,"cap_rule_version":"0.1.1","stage":"EXECUTION","req_access":"USER","req_vector":"LOCAL","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T08:38:56.699656+00:00","first_seen":"2017-10-05T01:29:04.790000+00:00","kev_first_seen":"2024-09-09T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["centos","linux","redhat"],"products":["centos","enterprise_linux","linux_kernel"],"affected":[{"vendor":"centos","product":"centos","ranges":["6.0","6.1","6.2","6.3","6.4","6.5","6.6","6.7","6.8","6.9","7.1406","7.1503","7.1511","7.1611"]},{"vendor":"linux","product":"linux_kernel","ranges":["≥ 4.0 and < 4.0.2","≥ 2.6.25 and < 3.2.70","≥ 3.3 and < 3.4.109","≥ 3.5 and < 3.10.77","≥ 3.11 and < 3.12.43","≥ 3.13 and < 3.14.41","≥ 3.15 and < 3.16.35","≥ 3.17 and < 3.18.14","≥ 3.19 and < 3.19.7"]},{"vendor":"redhat","product":"enterprise_linux","ranges":["6.9","7.0","7.1","7.2","7.3","6.0","6.1","6.2","6.3","6.4","6.5","6.6","6.7","6.8"]}]}