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Message-Id: <20160307025938.A687152E014@smtpvbsrv1.mitre.org> Date: Sun, 6 Mar 2016 21:59:38 -0500 (EST) From: cve-assign@...re.org To: ppandit@...hat.com Cc: cve-assign@...re.org, oss-security@...ts.openwall.com, liuling-it@....cn Subject: Re: CVE request Qemu: net: out of bounds read in net_checksum_calculate -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 > Qemu emulator built with the IP checksum routines is vulnerable to an OOB read > access issue. It could occur while computing checksum for TCP/UDP packets, as > the function uses payload length from the packet without checking against the > data buffer size. > > A user inside guest could use this flaw to read excessive bytes or crash the > Qemu process resulting in DoS. > > https://lists.gnu.org/archive/html/qemu-devel/2016-03/msg00671.html > https://bugzilla.redhat.com/show_bug.cgi?id=1296567 Use CVE-2016-2857. This is not yet available at http://git.qemu.org/?p=qemu.git;a=history;f=net/checksum.c but that may be an expected place for a later update. - -- CVE Assignment Team M/S M300, 202 Burlington Road, Bedford, MA 01730 USA [ A PGP key is available for encrypted communications at http://cve.mitre.org/cve/request_id.html ] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJW3O3wAAoJEL54rhJi8gl56hUP/RyxPOoTlX09iR6D5mvAkzdX OZSZuybX3W9X4kkZj4+TXUEAQxEBY7AN1j2QY3uPwb9N9QVXUF827vy+WLiXV0SG dIYHazeMKeGd5fLthf/DI1PFXxtezOkPkBmE33jlX8bn5O9zpcoSATSl8HKqQQCh iMdgOf1q1Y7rzz+qQrCbXZTKk7R9j5Q3hLkX8TaMlhdo9sUZwAaxiEuRIbGeuqds 7Id2nu1wfeOy4tptpEzfSYp6d8E9t2VHpnNnL3U5iFrdwc6SnKuKu0okwEIpnHJ3 mDb2FH2SPj2SWO4rdsJh/9WIzL6IvfELwq2tLp5aAsIDIsEgF68/0eawGID9wBDL +Am7yUyqvogKrFfWYRNo74adbRRsO5Jzda8+MMFvuCGctIHRZCXUSNd7GOHCdkia FMB7pcfAAZN/GPfAdVHpEZfk4aZqmy3iF28z7kOhFSalw74QQXTbAcoZiybyOJmh ADcEnIoDfvWhxUG3DBocf05a+5Pp1qLNbvYl9NzBEDkNJxcgVQEnMr4gN/QyFXDI At/gfwOEh3oCDN3mGvUk9d1lIDuu7yARXVcAPsrePHbpB9bmFLEgQRw0SCg+ezFe QgdYHQ2dquUBcuTcIrT5wDVGgKNwuCyf+h3PZwMXhIFEcTZJyQgldfJXXiXHfpX+ Ggfm4NI0fXZ8NtgMHo2P =ObQr -----END PGP SIGNATURE-----
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