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(parent: 733efc3) | patch
sd-bus: enforce a size limit on D-Bus object paths
authorMartin Pitt <martin@piware.de>
Sun, 17 Feb 2019 09:17:45 +0000 (10:17 +0100)
committerFelipe Sateler <fsateler@debian.org>
Thu, 21 Feb 2019 23:10:15 +0000 (23:10 +0000)
commit388d2e32f93056b2a991c65c9fe73817d1f2b4b7
tree1fe2ecea3ffbc1ddcc00eb221aa20ef6cea1e5f2tree | snapshot
parent733efc366f54608a0a9242225a1243600fdd765fcommit | diff
sd-bus: enforce a size limit on D-Bus object paths

Replace stack with heap allocation. This avoids accessing/modifying
memory outside of the allocated stack region by sending specially
crafted D-Bus messages with very large object paths.

Vulnerability discovered by Chris Coulson <chris.coulson@canonical.com>,
patch provided by Riccardo Schirone <rschiron@redhat.com>.

CVE-2019-6454

Gbp-Pq: Name sd-bus-enforce-a-size-limit-on-D-Bus-object-paths.patch
src/libsystemd/sd-bus/bus-internal.c diff | blob | history
src/libsystemd/sd-bus/bus-internal.h diff | blob | history
src/libsystemd/sd-bus/bus-objects.c diff | blob | history
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