CVE-2018-10191

published 2018-04-17

CVE-2018-10191: In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrb_vm_exec() when handling OP_GETUPVAR in the presence of deep scope…

Priority P3 46 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrb_vm_exec() when handling OP_GETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code.

Affected

7 ranges

Vendor	Product	Version range	Fixed in
debian	debian_linux	—	—
debian	mruby	< mruby 1.4.0+20180418+git54905e98-1 (bookworm)	mruby 1.4.0+20180418+git54905e98-1 (bookworm)
mruby	mruby	<= 1.4.0	—
mruby	mruby	>= 0 < 1.4.0+20180418+git54905e98-1	1.4.0+20180418+git54905e98-1
mruby	mruby	>= 0 < 1.4.0+20180418+git54905e98-1	1.4.0+20180418+git54905e98-1
mruby	mruby	>= 0 < 1.4.0+20180418+git54905e98-1	1.4.0+20180418+git54905e98-1
mruby	mruby	>= 0 < 1.4.0+20180418+git54905e98-1	1.4.0+20180418+git54905e98-1

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

osv 9.8 CRITICAL

vendor_debian 9.8 CRITICAL

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