Unrated severityNVD Advisory· Published Jul 20, 2020· Updated Aug 4, 2024
CVE-2020-15852
CVE-2020-15852
Description
An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions of an unrelated task. This occurs because tss_invalidate_io_bitmap mishandling causes a loss of synchronization between the I/O bitmaps of TSS and Xen, aka CID-cadfad870154.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Linux/Linux kerneldescription
- Range: >=5.5, <=5.7.9
Patches
Vulnerability mechanics
References
5- www.openwall.com/lists/oss-security/2020/07/21/2mitremailing-listx_refsource_MLIST
- xenbits.xen.org/xsa/advisory-329.htmlmitrex_refsource_MISC
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/mitrex_refsource_MISC
- github.com/torvalds/linux/commit/cadfad870154e14f745ec845708bc17d166065f2mitrex_refsource_MISC
- security.netapp.com/advisory/ntap-20200810-0001/mitrex_refsource_CONFIRM
News mentions
0No linked articles in our index yet.