{"id":"CVE-2026-6844","aliases":["CLSA-2026-1790167629","DEBIAN-CVE-2026-6844","EUVD-2026-24710","GHSA-p33j-xffm-gxj7","UBUNTU-CVE-2026-6844"],"status":"published","title":"Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files","description":"A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00104,"percentile":0.01022,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2026-04-22T08:37:09Z","modified":"2026-11-06T07:41:56Z","fixes":[{"ecosystem":"TuxCare:AlmaLinux:9.2","package":"binutils","fixed_in":["2.35.2-37.el9.tuxcare.els15"],"sources":["osv"]},{"ecosystem":"TuxCare:AlmaLinux:9.2","package":"binutils-devel","fixed_in":["2.35.2-37.el9.tuxcare.els15"],"sources":["osv"]},{"ecosystem":"TuxCare:AlmaLinux:9.2","package":"binutils-gold","fixed_in":["2.35.2-37.el9.tuxcare.els15"],"sources":["osv"]},{"ecosystem":"TuxCare:AlmaLinux:9.2","package":"cross-binutils-aarch64","fixed_in":["2.35.2-37.el9.tuxcare.els15"],"sources":["osv"]},{"ecosystem":"TuxCare:AlmaLinux:9.2","package":"cross-binutils-ppc64le","fixed_in":["2.35.2-37.el9.tuxcare.els15"],"sources":["osv"]},{"ecosystem":"TuxCare:AlmaLinux:9.2","package":"cross-binutils-s390x","fixed_in":["2.35.2-37.el9.tuxcare.els15"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"binutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.35.2-37.el9.tuxcare.els15"}]}]},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"binutils-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.35.2-37.el9.tuxcare.els15"}]}]},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"binutils-gold","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.35.2-37.el9.tuxcare.els15"}]}]},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"cross-binutils-aarch64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.35.2-37.el9.tuxcare.els15"}]}]},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"cross-binutils-ppc64le","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.35.2-37.el9.tuxcare.els15"}]}]},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"cross-binutils-s390x","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.35.2-37.el9.tuxcare.els15"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"binutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.40-2","2.40.50.20230111-1","2.40.50.20230215-1","2.40.50.20230501-1","2.40.50.20230510-1","2.40.50.20230602-1","2.40.50.20230611-1","2.40.50.20230611-2","2.40.50.20230622-1","2.40.50.20230625-1","2.40.50.20230630-1","2.40.90.20230705-1","2.40.90.20230714-1","2.40.90.20230714-2","2.40.90.20230720-1","2.40.90.20230729-1","2.40.90.20230729-2","2.41-1","2.41-2","2.41-3","2.41-4","2.41-5","2.41-6","2.41-7","2.41.50.20230731-1","2.41.50.20230803-1","2.41.50.20230905-1","2.41.50.20231010-1","2.41.50.20231101-1","2.41.50.20231125-1","2.41.50.20231202-1","2.41.50.20231206-1","2.41.50.20231214-1","2.41.50.20231227-1","2.41.90.20240115-1","2.41.90.20240122-1","2.42-1","2.42-2","2.42-2+hurd.1","2.42-3","2.42-4","2.42.50.20240614-1","2.42.50.20240618-1","2.42.50.20240625-1","2.42.50.20240710-1","2.42.90.20240720-1","2.42.90.20240720-2","2.43-1","2.43-2","2.43.1-1","2.43.1-2","2.43.1-3","2.43.1-4","2.43.1-5","2.43.50.20240817-1","2.43.50.20240909-1","2.43.50.20241004-1","2.43.50.20241112-1","2.43.50.20241126-1","2.43.50.20241126-2","2.43.50.20241126-3","2.43.50.20241204-1","2.43.50.20241204-2","2.43.50.20241210-1","2.43.50.20241215-1","2.43.50.20241221-1","2.43.50.20241230-1","2.43.50.20250108-1","2.43.90.20250122-1","2.43.90.20250122-2","2.43.90.20250127-1","2.43.90.20250202-1","2.44-1","2.44-2","2.44-3","2.44.50.20250201-1","2.44.50.20250207-1","2.44.50.20250218-1","2.44.50.20250218-2","2.44.50.20250309-1","2.44.50.20250405-1","2.44.50.20250502-1","2.44.50.20250520-1","2.44.50.20250528-1","2.44.50.20250707-1","2.44.90.20250719-1","2.45-1","2.45-2","2.45-3","2.45-4","2.45-5","2.45-6","2.45-7","2.45-8","2.45.50.20250813-1","2.45.50.20250903-1","2.45.50.20251005-1","2.45.50.20251023-1","2.45.50.20251023-2","2.45.50.20251122-1","2.45.50.20251125-1","2.45.50.20251201-1","2.45.50.20251209-1","2.45.50.20260116-1","2.45.50.20260119-1","2.45.90.20260125-1","2.45.90.20260201-1","2.46-1","2.46-2","2.46-3","2.46.50.20260216-1","2.46.50.20260509-1","2.46.50.20260519-1","2.46.50.20260608-1","2.46.50.20260617-1","2.46.90.20260712-1","2.47-1","2.47-2","2.47-3","2.47-4","2.47-5","2.47-6","2.47.50.20260813-1","2.47.50.20260813-2","2.47.50.20260813-3","2.47.50.20260901-1","2.47.50.20261004-1","2.47.50.20261020-1","2.47.50.20261021-1"]},{"source":"osv","ecosystem":"Debian:13","package":"binutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.44-3","2.44.50.20250201-1","2.44.50.20250207-1","2.44.50.20250218-1","2.44.50.20250218-2","2.44.50.20250309-1","2.44.50.20250405-1","2.44.50.20250502-1","2.4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Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6844","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-p33j-xffm-gxj7"},{"url":"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1790167629.html","tags":["advisory"]},{"url":"https://access.redhat.com/downloads/content/package-browser/","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6844.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-6844","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-6844","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-6844","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-6844","title":"Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files","description":"A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.","status":"published","published":"2026-04-22T08:37:09.794Z","modified":"2026-11-06T07:41:56.03Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-06T08:57:32.08691Z"}],"euvd":[{"id":"EUVD-2026-24710","description":"A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.","status":"published","published":"2026-04-22T08:37:09Z","modified":"2026-11-06T07:41:56Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-06T09:04:28.113071Z"}],"ghsa":[{"id":"GHSA-p33j-xffm-gxj7","title":"A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit...","description":"A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.","status":"published","published":"2026-04-22T09:31:34Z","modified":"2026-04-22T09:31:41Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:07:34.1405Z"}],"nvd":[{"id":"CVE-2026-6844","description":"A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.","status":"published","published":"2026-04-22T09:16:27.14Z","modified":"2026-11-06T08:17:36.19Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-400"],"updated_at":"2026-11-06T11:59:55.873644Z"}],"osv":[{"id":"CVE-2026-6844","title":"Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files","description":"A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.","status":"published","published":"2026-04-22T08:37:09.794Z","modified":"2026-11-08T02:30:29.750845317Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-07T03:08:09.298884Z"},{"id":"DEBIAN-CVE-2026-6844","description":"A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.","status":"published","published":"2026-04-22T09:16:27.14Z","modified":"2026-11-07T09:47:37.380758102Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-07T10:14:19.880839Z"},{"id":"UBUNTU-CVE-2026-6844","description":"A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.","status":"published","published":"2026-04-22T09:16:00Z","modified":"2026-10-17T13:00:41.69742229Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:56:57.159276Z"},{"id":"CLSA-2026-1790167629","title":"binutils: Fix of CVE-2026-6844","description":"- CVE-2026-6844: readelf denial of service from malformed section headers","status":"published","published":"2026-09-23T12:47:21Z","modified":"2026-10-26T09:30:50.400928219Z","updated_at":"2026-11-02T15:43:48.28229Z"}]}}