CVE-2019-17340
published 2019-10-08CVE-2019-17340: An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cause a denial of service or gain privileges because grant-table transfer requests…
PriorityP339high8.8CVSS 3.1
AVLACLPRLUINSCCHIHAH
EPSS
0.35%
27.6th percentile
An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cause a denial of service or gain privileges because grant-table transfer requests are mishandled.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | xen | < xen 4.11.1+92-g6c33308a8d-1 (bookworm) | xen 4.11.1+92-g6c33308a8d-1 (bookworm) |
| xen | xen | >= 0 < 4.11.1+92-g6c33308a8d-1 | 4.11.1+92-g6c33308a8d-1 |
| xen | xen | >= 0 < 4.11.1+92-g6c33308a8d-1 | 4.11.1+92-g6c33308a8d-1 |
| xen | xen | >= 0 < 4.11.1+92-g6c33308a8d-1 | 4.11.1+92-g6c33308a8d-1 |
| xen | xen | >= 0 < 4.11.1+92-g6c33308a8d-1 | 4.11.1+92-g6c33308a8d-1 |
| xen | xen | 3.2.0 – 4.11.2 | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
nvdv2.06.1MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:C
osv8.8HIGH
vendor_debian8.8HIGH
vendor_redhat8.8HIGH
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GHSA
GHSA-5rr5-4vg6-qw69: An issue was discovered in Xen through 4
ghsa_unreviewed·2022-05-24
CVE-2019-17340 [HIGH] CWE-20 GHSA-5rr5-4vg6-qw69: An issue was discovered in Xen through 4
An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cause a denial of service or gain privileges because grant-table transfer requests are mishandled.
OSV
CVE-2019-17340: An issue was discovered in Xen through 4
osv·2019-10-08·CVSS 8.8
CVE-2019-17340 [HIGH] CVE-2019-17340: An issue was discovered in Xen through 4
An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cause a denial of service or gain privileges because grant-table transfer requests are mishandled.
Red Hat
xen: mishanding grant-table transfer allows x86 guest OS to cause a DoS or escalate their privileges
vendor_redhat·2019-10-31·CVSS 8.8
CVE-2019-17340 [HIGH] CWE-20 xen: mishanding grant-table transfer allows x86 guest OS to cause a DoS or escalate their privileges
xen: mishanding grant-table transfer allows x86 guest OS to cause a DoS or escalate their privileges
An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cause a denial of service or gain privileges because grant-table transfer requests are mishandled.
A flaw was found in xen. When the code processing grant table transfer requests finds a page with an address too large to be represented in the interface with the guest, it allocates a replacement page and copies page contents. The page as well as certain other remnants of an affected guest will be leaked due to being unfreeable upon domain cleanup. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Package: kernel-xen (Red Hat Enterprise Linux 5) - O
Debian
CVE-2019-17340: xen - An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cau...
vendor_debian·2019·CVSS 8.8
CVE-2019-17340 [HIGH] CVE-2019-17340: xen - An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cau...
An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cause a denial of service or gain privileges because grant-table transfer requests are mishandled.
Scope: local
bookworm: resolved (fixed in 4.11.1+92-g6c33308a8d-1)
bullseye: resolved (fixed in 4.11.1+92-g6c33308a8d-1)
forky: resolved (fixed in 4.11.1+92-g6c33308a8d-1)
sid: resolved (fixed in 4.11.1+92-g6c33308a8d-1)
trixie: resolved (fixed in 4.11.1+92-g6c33308a8d-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-17340 xen: mishanding grant-table transfer allows x86 guest OS to cause a DoS or escalate their privileges [fedora-all]
bugzilla·2019-11-12·CVSS 8.8
CVE-2019-17340 [HIGH] CVE-2019-17340 xen: mishanding grant-table transfer allows x86 guest OS to cause a DoS or escalate their privileges [fedora-all]
CVE-2019-17340 xen: mishanding grant-table transfer allows x86 guest OS to cause a DoS or escalate their privileges [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
N
Bugzilla
CVE-2019-17340 xen: mishanding grant-table transfer allows x86 guest OS to cause a DoS or escalate their privileges
bugzilla·2019-11-12·CVSS 8.8
CVE-2019-17340 [HIGH] CVE-2019-17340 xen: mishanding grant-table transfer allows x86 guest OS to cause a DoS or escalate their privileges
CVE-2019-17340 xen: mishanding grant-table transfer allows x86 guest OS to cause a DoS or escalate their privileges
When the code processing grant table transfer requests finds a page with an address too large to be represented in the interface with the guest, it allocates a replacement page and copies page contents. The page as well as certain other remnants of an affected guest will be leaked due to being unfreeable upon domain cleanup.
Discussion:
Created xen tracking bugs for this issue:
Affects: fedora-all [bug 1771350]
---
Upstream issue and patch:
https://xenbits.xen.org/xsa/advisory-284.html
http://www.openwall.com/lists/oss-security/2019/10/25/1http://xenbits.xen.org/xsa/advisory-284.htmlhttps://seclists.org/bugtraq/2020/Jan/21https://www.debian.org/security/2020/dsa-4602https://xenbits.xen.org/xsa/advisory-284.htmlhttp://www.openwall.com/lists/oss-security/2019/10/25/1http://xenbits.xen.org/xsa/advisory-284.htmlhttps://seclists.org/bugtraq/2020/Jan/21https://www.debian.org/security/2020/dsa-4602https://xenbits.xen.org/xsa/advisory-284.html
2019-10-08
Published