CVE-2019-6454

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

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).

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Mar 21, 2019
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2019

CVE-2019-64556.5An issue was discovered in GNU Recutils 1.8. There is a double-free problem in the function rec_mset_elem_destroy() in the file rec-mset.c.CVE-2019-64566.5An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function rec_fex_size() in the file rec-fex.c of libCVE-2019-64576.5An issue was discovered in GNU Recutils 1.8. There is a memory leak in rec_aggregate_reg_new in rec-aggregate.c in librec.a.CVE-2019-64586.5An issue was discovered in GNU Recutils 1.8. There is a memory leak in rec_buf_new in rec-buf.c when called from rec_parse_rset in rec-parseCVE-2019-64596.5An issue was discovered in GNU Recutils 1.8. There is a memory leak in rec_extract_type in rec-utils.c in librec.a.CVE-2019-64606.5An issue was discovered in GNU Recutils 1.8. There is a NULL pointer dereference in the function rec_field_set_name() in the file rec-field.CVE-2019-64616.5An issue was discovered in cairo 1.16.0. There is an assertion problem in the function _cairo_arc_in_direction in the file cairo-arc.c.CVE-2019-64626.5An issue was discovered in cairo 1.16.0. There is an infinite loop in the function _arc_error_normalized in the file cairo-arc.c, related toCVE-2019-64655.3Controls for zone transfers may not be properly applied to Dynamically Loadable Zones (DLZs) if the zones are writable Versions affected: BICVE-2019-64677.5A programming error in the nxdomain-redirect feature can cause an assertion failure in query.c if the alternate namespace used by nxdomain-rCVE-2019-64687.5In BIND Supported Preview Edition, an error in the nxdomain-redirect feature can occur in versions which support EDNS Client Subnet (ECS) feCVE-2019-64697.5An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a
CVE-2019-6454: Medium severity, CVSS 5.5 | Vulnix