Description (CNA)
QEMU (aka Quick Emulator) built with the Rocker switch emulation support is vulnerable to an off-by-one error. It happens while processing transmit (tx) descriptors in 'tx_consume' routine, if a descriptor was to have more than allowed (ROCKER_TX_FRAGS_MAX=16) fragments. A privileged user inside guest could use this flaw to cause memory leakage on the host or crash the QEMU process instance resulting in DoS issue.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- http://www.openwall.com/lists/oss-security/2015/12/28/6
- https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.html
- http://www.securityfocus.com/bid/79706
- http://www.openwall.com/lists/oss-security/2015/12/29/1
- https://bugzilla.redhat.com/show_bug.cgi?id=1286971
- https://security.gentoo.org/glsa/201602-01
ADP enrichment
No English description supplied.
- http://www.openwall.com/lists/oss-security/2015/12/28/6
- https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.html
- http://www.securityfocus.com/bid/79706
- http://www.openwall.com/lists/oss-security/2015/12/29/1
- https://bugzilla.redhat.com/show_bug.cgi?id=1286971
- https://security.gentoo.org/glsa/201602-01