suse-su-2019:0827-1
Vulnerability from csaf_suse
Published
2019-04-01 09:26
Modified
2019-04-01 09:26
Summary
Security update for xen
Notes
Title of the patch
Security update for xen
Description of the patch
This update for xen fixes the following issues:
Security issues fixed:
- CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() found in slirp (bsc#1123157).
- CVE-2017-13672: Fixed an out of bounds read access during display update (bsc#1056336).
- Fixed an issue which could allow malicious or buggy guests with passed through PCI devices to be able to
escalate their privileges, crash the host, or access data belonging to other guests. Additionally memory
leaks were also possible (bsc#1126140)
- Fixed a race condition issue which could allow malicious PV guests to escalate their privilege to that
of the hypervisor (bsc#1126141).
- CVE-2018-18849: Fixed an out of bounds msg buffer access which could lead to denial of service (bsc#1114423).
- Fixed an issue which could allow a malicious unprivileged guest userspace process to escalate its privilege
to that of other userspace processes in the same guest and potentially thereby to that
of the guest operating system (bsc#1126201).
- CVE-2018-17958: Fixed an integer overflow leading to a buffer overflow in the
rtl8139 component (bsc#1111007)
- CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the host,
resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988)
- CVE-2018-19665: Fixed an integer overflow resulting in memory corruption in
various Bluetooth functions, allowing this to crash qemu process resulting in
Denial of Service (DoS). (bsc#1117756).
- CVE-2019-9824: Fixed an information leak in SLiRP networking implementation which could allow a user/process
to read uninitialised stack memory contents (bsc#1129623).
- CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB
flushing with AMD IOMMUs, which potentially allowed a guest to escalate its
privileges, may cause a Denial of Service (DoS) affecting the entire host, or
may be able to access data it is not supposed to access. (XSA-275)
(bsc#1115040)
- CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which
conflicted with shadow paging and allowed a guest to cause Xen to crash,
resulting in a Denial of Service (DoS) (XSA-280) (bsc#1115047).
- CVE-2018-10839: Fixed an integer overflow leading to a buffer overflow in
the ne2000 component (bsc#1110924).
- CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case
non-canonical addresses are accessed, which may allow a guest to cause Xen to
crash, resulting in a Denial of Service (DoS) affecting the entire host.
(XSA-279) (bsc#1115045).
- Fixed an issue which could allow malicious 64bit PV guests to cause a host crash (bsc#1127400).
- Fixed an issue which could allow malicious PV guests may cause a host crash or
gain access to data pertaining to other guests.Additionally, vulnerable configurations
are likely to be unstable even in the absence of an attack (bsc#1126198).
- Fixed multiple access violations introduced by XENMEM_exchange hypercall which could allow
a single PV guest to leak arbitrary amounts of memory, leading to a denial of service (bsc#1126192).
- CVE-2018-17963: Fixed an integer overflow in relation to large packet sizes,
leading to a denial of service (DoS). (bsc#1111014).
- Fixed an issue which could allow a malicious or buggy x86 PV guest kernels can mount a Denial of Service
attack affecting the whole system (bsc#1126196).
- Fixed an issue which could allow an untrusted PV domain with access to a physical device to DMA into its own
pagetables leading to privilege escalation (bsc#1126195).
- CVE-2018-17962: Fixed an integer overflow leading to a buffer overflow in the
pcnet component (bsc#1111011)
- CVE-2018-18438: Fixed an integer overflow in ccid_card_vscard_read function which could lead to memory corruption (bsc#1112188).
Other issues fixed:
- Upstream bug fixes (bsc#1027519)
- Fixed an issue where XEN SLE12-SP1 domU hangs on SLE12-SP3 HV1108940 (bsc#1108940).
Patchnames
SUSE-2019-827,SUSE-SLE-SERVER-12-2019-827
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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{
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],
"title": "CVE-2018-17963"
},
{
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{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2018-18438"
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],
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{
"category": "general",
"text": "Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.",
"title": "CVE description"
}
],
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{
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"system_name": "SUSE CVE Page",
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}
],
"notes": [
{
"category": "general",
"text": "In Qemu 3.0.0, lsi_do_msgin in hw/scsi/lsi53c895a.c allows out-of-bounds access by triggering an invalid msg_len value.",
"title": "CVE description"
}
],
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"summary": "SUSE Bug 1114422 for CVE-2018-18849",
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{
"category": "external",
"summary": "SUSE Bug 1114423 for CVE-2018-18849",
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}
],
"notes": [
{
"category": "general",
"text": "The Bluetooth subsystem in QEMU mishandles negative values for length variables, leading to memory corruption.",
"title": "CVE description"
}
],
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{
"category": "external",
"summary": "SUSE Bug 1117749 for CVE-2018-19665",
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{
"category": "external",
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{
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{
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"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2018-19961"
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],
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{
"category": "general",
"text": "An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.",
"title": "CVE description"
}
],
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{
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],
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{
"category": "general",
"text": "An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because small IOMMU mappings are unsafely combined into larger ones.",
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}
],
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],
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{
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"text": "An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.",
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"url": "https://www.suse.com/security/cve/CVE-2018-19965"
},
{
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"summary": "SUSE Bug 1115045 for CVE-2018-19965",
"url": "https://bugzilla.suse.com/1115045"
}
],
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{
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}
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{
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{
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{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2018-19966"
}
],
"notes": [
{
"category": "general",
"text": "An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595.",
"title": "CVE description"
}
],
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},
{
"category": "external",
"summary": "SUSE Bug 1115047 for CVE-2018-19966",
"url": "https://bugzilla.suse.com/1115047"
},
{
"category": "external",
"summary": "SUSE Bug 1178658 for CVE-2018-19966",
"url": "https://bugzilla.suse.com/1178658"
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],
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{
"category": "vendor_fix",
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}
],
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{
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},
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}
],
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{
"category": "impact",
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"details": "moderate"
}
],
"title": "CVE-2018-19966"
},
{
"cve": "CVE-2018-19967",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2018-19967"
}
],
"notes": [
{
"category": "general",
"text": "An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel\u0027s mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix.",
"title": "CVE description"
}
],
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{
"category": "external",
"summary": "SUSE Bug 1114988 for CVE-2018-19967",
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{
"category": "external",
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],
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],
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{
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}
],
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{
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],
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},
{
"cve": "CVE-2019-6778",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2019-6778"
}
],
"notes": [
{
"category": "general",
"text": "In QEMU 3.0.0, tcp_emu in slirp/tcp_subr.c has a heap-based buffer overflow.",
"title": "CVE description"
}
],
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],
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}
],
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{
"category": "general",
"text": "tcp_emu in slirp/tcp_subr.c (aka slirp/src/tcp_subr.c) in QEMU 3.0.0 uses uninitialized data in an snprintf call, leading to Information disclosure.",
"title": "CVE description"
}
],
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{
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"details": "low"
}
],
"title": "CVE-2019-9824"
}
]
}
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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.
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