File _patchinfo of Package patchinfo.5001

<patchinfo incident="5001">
  <issue id="1042893" tracker="bnc">VUL-0: xen: Races in the grant table unmap code (XSA-218)</issue>
  <issue id="1042882" tracker="bnc">VUL-0: xen: page transfer may allow PV guest to elevate privilege (XSA-217)</issue>
  <issue id="1042924" tracker="bnc">VUL-0: xen: NULL pointer deref in event channel poll (XSA-221)</issue>
  <issue id="1042923" tracker="bnc">VUL-0: xen: x86: PKRU and BND* leakage between vCPU-s (XSA-220)</issue>
  <issue id="1042931" tracker="bnc">VUL-0: xen: stale P2M mappings due to insufficient error checking (XSA-222)</issue>
  <issue id="1037243" tracker="bnc">VUL-1: CVE-2017-8309: xen: audio: host memory leakage via capture buffer</issue>
  <issue id="1042915" tracker="bnc">VUL-0: xen: x86: insufficient reference counts during shadow emulation (XSA-219)</issue>
  <issue id="1042938" tracker="bnc">VUL-0: xen: grant table operations mishandle reference counts (XSA-224)</issue>
  <issue id="1027519" tracker="bnc">Xen: Missing upstream bug fixes</issue>
  <issue id="1042160" tracker="bnc">VUL-1: CVE-2017-9330: xen: usb: ohci: infinite loop due to incorrect return value</issue>
  <issue id="1035642" tracker="bnc">rpmbuild -bc with xen-4.7.0_12-23.4.src.rpm failed</issue>
  <issue id="2017-9330" tracker="cve" />
  <issue id="2017-8309" tracker="cve" />
  <category>security</category>
  <rating>important</rating>
  <packager>charlesa</packager>
  <description>This update for xen fixes several issues.

These security issues were fixed:

- Page transfer might have allowed PV guest to elevate privilege (XSA-217, bsc#1042882)
- Races in the grant table unmap code allowed for informations leaks and potentially privilege escalation (XSA-218, bsc#1042893)
- Insufficient reference counts during shadow emulation allowed a malicious pair of guest to elevate their privileges to the privileges that XEN runs under (XSA-219, bsc#1042915)
- Missing NULL pointer check in event channel poll allows guests to DoS the host (XSA-221, bsc#1042924)
- Stale P2M mappings due to insufficient error checking allowed malicious guest to leak information or elevate privileges (XSA-222, bsc#1042931)
- Grant table operations mishandled reference counts allowing malicious guests to escape (XSA-224, bsc#1042938)
- CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042160)
- CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037243)
- PKRU and BND* leakage between vCPU-s might have leaked information to other guests (XSA-220, bsc#1042923)

These non-security issues were fixed:

- bsc#1027519: Included various upstream patches 
- bsc#1035642: Ensure that rpmbuild works
</description>
  <summary>Security update for xen</summary>
</patchinfo>