CVE-2018-19964
published 2018-12-08CVE-2018-19964: An issue was discovered in Xen 4.11.x allowing x86 guest OS users to cause a denial of service (host OS hang) because the p2m lock remains unavailable…
PriorityP420medium6.5CVSS 3.0
AVLACLPRLUINSCCNINAH
EPSS
0.36%
28.0th percentile
An issue was discovered in Xen 4.11.x allowing x86 guest OS users to cause a denial of service (host OS hang) because the p2m lock remains unavailable indefinitely in certain error conditions.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | xen | < xen 4.11.1-1 (bookworm) | xen 4.11.1-1 (bookworm) |
| xen | xen | >= 0 < 4.11.1-1 | 4.11.1-1 |
| xen | xen | >= 0 < 4.11.1-1 | 4.11.1-1 |
| xen | xen | >= 0 < 4.11.1-1 | 4.11.1-1 |
| xen | xen | >= 0 < 4.11.1-1 | 4.11.1-1 |
| xen | xen | 4.11.0 – 4.11.1 | — |
CVSS provenance
nvdv3.06.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
nvdv2.04.9MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
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Red Hat
xen: x86: incorrect error handling for guest p2m page removals (XSA-277)
vendor_redhat·2018-11-20·CVSS 6.5
CVE-2018-19964 [MEDIUM] CWE-367 xen: x86: incorrect error handling for guest p2m page removals (XSA-277)
xen: x86: incorrect error handling for guest p2m page removals (XSA-277)
An issue was discovered in Xen 4.11.x allowing x86 guest OS users to cause a denial of service (host OS hang) because the p2m lock remains unavailable indefinitely in certain error conditions.
Package: xen (Red Hat Enterprise Linux 5) - Will not fix
Debian
CVE-2018-19964: xen - An issue was discovered in Xen 4.11.x allowing x86 guest OS users to cause a den...
vendor_debian·2018·CVSS 6.5
CVE-2018-19964 [MEDIUM] CVE-2018-19964: xen - An issue was discovered in Xen 4.11.x allowing x86 guest OS users to cause a den...
An issue was discovered in Xen 4.11.x allowing x86 guest OS users to cause a denial of service (host OS hang) because the p2m lock remains unavailable indefinitely in certain error conditions.
Scope: local
bookworm: resolved (fixed in 4.11.1-1)
bullseye: resolved (fixed in 4.11.1-1)
forky: resolved (fixed in 4.11.1-1)
sid: resolved (fixed in 4.11.1-1)
trixie: resolved (fixed in 4.11.1-1)
GHSA
GHSA-5cpj-w97w-28px: An issue was discovered in Xen 4
ghsa_unreviewed·2022-05-13
CVE-2018-19964 [MEDIUM] GHSA-5cpj-w97w-28px: An issue was discovered in Xen 4
An issue was discovered in Xen 4.11.x allowing x86 guest OS users to cause a denial of service (host OS hang) because the p2m lock remains unavailable indefinitely in certain error conditions.
OSV
CVE-2018-19964: An issue was discovered in Xen 4
osv·2018-12-08·CVSS 6.5
CVE-2018-19964 [MEDIUM] CVE-2018-19964: An issue was discovered in Xen 4
An issue was discovered in Xen 4.11.x allowing x86 guest OS users to cause a denial of service (host OS hang) because the p2m lock remains unavailable indefinitely in certain error conditions.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-19963 CVE-2018-19964 CVE-2018-19966 xen: various flaws [fedora-all]
bugzilla·2018-11-21·CVSS 7.8
CVE-2018-19963 [HIGH] CVE-2018-19963 CVE-2018-19964 CVE-2018-19966 xen: various flaws [fedora-all]
CVE-2018-19963 CVE-2018-19964 CVE-2018-19966 xen: various flaws [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.
NOTE: this issue affects multiple supported versions
Bugzilla
CVE-2018-19964 xsa277 xen: x86: incorrect error handling for guest p2m page removals (XSA-277)
bugzilla·2018-11-21·CVSS 6.5
CVE-2018-19964 [MEDIUM] CVE-2018-19964 xsa277 xen: x86: incorrect error handling for guest p2m page removals (XSA-277)
CVE-2018-19964 xsa277 xen: x86: incorrect error handling for guest p2m page removals (XSA-277)
ISSUE DESCRIPTION
The internal function querying a domain's p2m table grabs the p2m lock
by default, so that the answer to the query remains true until the
caller can act on that information; it is up to the caller then to
release the lock. Unfortunately, certain failure paths don't release
the lock.
IMPACT
A malicious or buggy guest may cause a deadlock, resulting in a DoS
(Denial of Service) affecting the entire host.
VULNERABLE SYSTEMS
Xen 4.11 and onward are vulnerable.
Only x86 systems are vulnerable. ARM systems are not vulnerable.
Only systems running untrusted HVM or PVH guests are vulnerable.
Systems running only PV guests are not vulnerable.
MITIGATION
Running only PV guests w
2018-12-08
Published