CVE-2019-6454 | An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel pa
An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).
- 🔗 lists.fedoraproject.org/archives/list/package-announce%40lists.fe…
- 🔗 www.openwall.com/lists/oss-security/2019/02/18/3
- 🔗 www.securityfocus.com/bid/107081
- 🔗 usn.ubuntu.com/3891-1/
- 🔗 access.redhat.com/errata/RHSA-2019:0368
- 🔗 github.com/systemd/systemd/commits/master/src/libsys…
- 🔗 lists.opensuse.org/opensuse-security-announce/2019-02/msg000…
- 🔗 www.openwall.com/lists/oss-security/2019/02/19/1
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CVE-2019-6454 | An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel pa
An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local use