libtcmu2: In Open-iSCSI tcmu-runner 1.3.x, 1.4.x, and 1.5.x through 1.5.2, xcopy_locate_udev in tcmur_cmd_handler.c lacks a che...
CVE-2021-3139 is fixed in 2 products on 1 platform, first by libtcmu2 1.5.2-5ubuntu0.20.04.1, released January 13, 2021. It is not reported as exploited. Patch Radar priority: Routine.
In Open-iSCSI tcmu-runner 1.3.x, 1.4.x, and 1.5.x through 1.5.2, xcopy_locate_udev in tcmur_cmd_handler.c lacks a check for transport-layer restrictions, allowing remote attackers to read or write files via directory traversal in an XCOPY request. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. NOTE: relative to CVE-2020-28374, this is a similar mistake in a different algorithm.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libtcmu2 · Ubuntu 20.04 LTS (focal) | 1.5.2-5ubuntu0.20.04.1 | libtcmu2 1.5.2-5ubuntu0.20.04.1 | Jan 13, 2021 |
| tcmu-runner · Ubuntu 20.04 LTS (focal) | 1.5.2-5ubuntu0.20.04.1 | tcmu-runner 1.5.2-5ubuntu0.20.04.1 | Jan 13, 2021 |
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