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CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 1

A vulnerability was found in systemd. This security flaw can cause a local information leak due to systemd-coredump not respecting the fs.suid_dumpable kernel setting. • https://github.com/systemd/systemd/commit/b7641425659243c09473cd8fb3aef2c0d4a3eb9c https://www.openwall.com/lists/oss-security/2022/12/21/3 https://access.redhat.com/security/cve/CVE-2022-4415 https://bugzilla.redhat.com/show_bug.cgi?id=2155515 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0

systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file. systemd 250 y 251 permiten a los usuarios locales lograr un punto muerto en systemd-coredump al desencadenar un bloqueo que tiene un largo backtrace. Esto ocurre en parse_elf_object enshared/elf-util.c. • https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437 https://github.com/systemd/systemd/pull/24853#issuecomment-1326561497 https://github.com/systemd/systemd/pull/25055#issuecomment-1313733553 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MS5N5SLYAHKENLAJWYBDKU55ICU3SVZF https://access.redhat.com/security/cve/CVE-2022-45873 https://bugzilla.redhat.com/show_bug.cgi?id=2149063 • CWE-400: Uncontrolled Resource Consumption CWE-833: Deadlock •