CVE-2020-27674 (GCVE-0-2020-27674)

Vulnerability from cvelistv5 – Published: 2020-10-22 20:33 – Updated: 2024-08-04 16:18
VLAI
Summary
An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.
Severity
5.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE
  • n/a
Assigner
References
URL Tags
https://xenbits.xen.org/xsa/advisory-286.html x_refsource_MISC
https://security.gentoo.org/glsa/202011-06 vendor-advisoryx_refsource_GENTOO
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2020/dsa-4804 vendor-advisoryx_refsource_DEBIAN
http://www.openwall.com/lists/oss-security/2021/01/19/5 mailing-listx_refsource_MLIST
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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