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SUSE:SLE-12-SP4:Update
patchinfo.4216
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File _patchinfo of Package patchinfo.4216
<patchinfo incident="4216"> <issue id="1012651" tracker="bnc">VUL-0: CVE-2016-9932: xen: x86 CMPXCHG8B emulation fails to ignore operand size override (XSA-200)</issue> <issue id="1023004" tracker="bnc">VUL-0: CVE-2017-2615: kvm: qemu: display: cirrus: oob access while doing bitblt copy backward mode [XSA-208]</issue> <issue id="1024834" tracker="bnc">VUL-0: EMBARGOED: CVE-2017-2620: xen: cirrus_bitblt_cputovideo does not check if memory region is safe (XSA-209)</issue> <issue id="1015169" tracker="bnc">VUL-0: CVE-2016-9921, CVE-2016-9922: xen: qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy</issue> <issue id="1016340" tracker="bnc">VUL-0: CVE-2016-10013: xen: x86: Mishandling of SYSCALL singlestep during emulation (XSA-204)</issue> <issue id="1014300" tracker="bnc">VUL-0: CVE-2016-10025: xen: x86: missing NULL pointer check in VMFUNC emulation (XSA-203)</issue> <issue id="1000195" tracker="bnc">SLES 11 SP3 with XEN kernel stop booting with Panic on CPU0</issue> <issue id="1022871" tracker="bnc">VUL-0: xen: memory leak when destroying guest without PT devices (XSA-207)</issue> <issue id="1005028" tracker="bnc">Can't build Xen RPMs from Sources</issue> <issue id="1002496" tracker="bnc">Adding support for reloading clvm in block-dmmd</issue> <issue id="1014298" tracker="bnc">VUL-0: CVE-2016-10024: xen: x86 PV guests may be able to mask interrupts (XSA-202)</issue> <issue id="2017-2620" tracker="cve" /> <issue id="2017-2615" tracker="cve" /> <issue id="2016-9921" tracker="cve" /> <issue id="2016-9922" tracker="cve" /> <category>security</category> <rating>important</rating> <packager>charlesa</packager> <description> This update for xen fixes several issues. These security issues were fixed: - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine cirrus_bitblt_cputovideo failed to check the memory region, allowing for an out-of-bounds write that allows for privilege escalation (bsc#1024834). - CVE-2017-2615: An error in the bitblt copy operation could have allowed a malicious guest administrator to cause an out of bounds memory access, possibly leading to information disclosure or privilege escalation (bsc#1023004). - A malicious guest could have, by frequently rebooting over extended periods of time, run the host system out of memory, resulting in a Denial of Service (DoS) (bsc#1022871) - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support was vulnerable to a divide by zero issue while copying VGA data. A privileged user inside guest could have used this flaw to crash the process instance on the host, resulting in DoS (bsc#1015169 These non-security issues were fixed: - bsc#1000195: Prevent panic on CPU0 while booting on SLES 11 SP3 - bsc#1002496: Added support for reloading clvm in block-dmmd block-dmmd - bsc#1005028: Fixed building Xen RPMs from Sources </description> <summary>Security update for xen</summary> </patchinfo>
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