cve-2020-15852
Vulnerability from cvelistv5
Published
2020-07-20 18:54
Modified
2024-08-04 13:30
Severity ?
EPSS score ?
Summary
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.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | http://www.openwall.com/lists/oss-security/2020/07/21/2 | Mailing List, Third Party Advisory | |
| cve@mitre.org | http://xenbits.xen.org/xsa/advisory-329.html | Patch, Third Party Advisory | |
| cve@mitre.org | https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cadfad870154e14f745ec845708bc17d166065f2 | Mailing List, Patch, Vendor Advisory | |
| cve@mitre.org | https://github.com/torvalds/linux/commit/cadfad870154e14f745ec845708bc17d166065f2 | Patch, Third Party Advisory | |
| cve@mitre.org | https://security.netapp.com/advisory/ntap-20200810-0001/ | Third Party Advisory |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.