Qemu: net: pcnet: buffer overflow in non-loopback mode

A buffer overflow flaw was found in the way QEMU's AMD PC-Net II emulation validated certain received packets from a remote host in non-loopback mode. A remote, unprivileged attacker could potentially use this flaw to execute arbitrary code on the host with the privileges of the QEMU process. Not...

Qemu: net: pcnet: heap overflow vulnerability in pcnet_receive

A heap-based buffer overflow flaw was discovered in the way QEMU's AMD PC-Net II Ethernet Controller emulation received certain packets in loopback mode. A privileged user with the CAPSYSRAWIO capability inside a guest could use this flaw to crash the host QEMU process resulting in denial of...

Qemu: net: pcnet: buffer overflow in non-loopback mode

A buffer overflow flaw was found in the way QEMU's AMD PC-Net II emulation validated certain received packets from a remote host in non-loopback mode. A remote, unprivileged attacker could potentially use this flaw to execute arbitrary code on the host with the privileges of the QEMU process. Not...

Qemu: net: pcnet: buffer overflow in non-loopback mode

A buffer overflow flaw was found in the way QEMU's AMD PC-Net II emulation validated certain received packets from a remote host in non-loopback mode. A remote, unprivileged attacker could potentially use this flaw to execute arbitrary code on the host with the privileges of the QEMU process. Not...

QEMU pcnet_receive 堆缓冲区溢出漏洞(CVE-2015-7504)

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://lists.gnu.org/archive/html/qemu-devel/2015-11/msg06342.html pcnet是虚拟化软件QEMU中实现AMD PCNET网卡功能模拟的组件，相关的代码实现位于/hw/net/pcnet.c中。 在qemu软件中使用pcnet网卡，需要如下的命令行进行配置： qemu-system-x8664 centos-6.5-x64.img -m 1024 - net nic,model=pcnet -net user...

360MarvelTeam virtualization vulnerability of the third bullet: CVE-2 0 1 5-7 5 0 4 vulnerability analysis-vulnerability warning-the black bar safety net

Recently amazon, Ali cloud and other cloud providers have received the xen official of the vulnerability notification email, in this email, the official statement MarvelTeam found and reported a high-risk vulnerability. Today's protagonist is this gold number CVE-2 0 1 5-7 5 0 4, a gold affects...

USN-2828-1 qemu, qemu-kvm vulnerabilities

Jason Wang discovered that QEMU incorrectly handled the virtio-net device. A remote attacker could use this issue to cause guest network consumption, resulting in a denial of service. CVE-2015-7295 Qinghao Tang and Ling Liu discovered that QEMU incorrectly handled the pcnet driver when used in...

USN-2828-1: QEMU vulnerabilities

Jason Wang discovered that QEMU incorrectly handled the virtio-net device. A remote attacker could use this issue to cause guest network consumption, resulting in a denial of service. CVE-2015-7295 Qinghao Tang and Ling Liu discovered that QEMU incorrectly handled the pcnet driver when used in...

QEMU AMD PC-Net II Ethernet Controller Packet Length Buffer Overflow Vulnerability

QEMU is a simulation processor software developed by French programmer Fabrice Bellard. The software is fast and cross-platform. A buffer overflow vulnerability exists in the 'pcnetreceive' function in the hw/net/pcnet.c file in QEMU version 2.5.0, which originates from the program failing to...

QEMU AMD PC-Net II Ethernet Controller CRC Handling Buffer Overflow Vulnerability

QEMU is a simulation processor software developed by French programmer Fabrice Bellard. The software is fast and cross-platform. A buffer overflow vulnerability exists in the 'pcnettransmit' function in QEMU's hw/net/pcnet.c file, which originates from the program's failure to correctly validate...

heap buffer overflow vulnerability in pcnet emulator

ISSUE DESCRIPTION The QEMU security team has predisclosed the following advisory: The AMD PC-Net II emulatorhw/net/pcnet.c, while receiving packets in loopback mode, appends CRC code to the receive buffer. If the data size given is same as the buffer size4096, the appended CRC code overwrites 4...

PT-2015-7555

Name of the Vulnerable Software and Affected Versions QEMU affected versions not specified Description A heap-based buffer overflow issue exists in the pcnet receive function in hw/net/pcnet.c, allowing guest OS administrators to cause a denial of service instance crash or possibly execute...

UBUNTU-CVE-2015-7504

Heap-based buffer overflow in the pcnetreceive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of service instance crash or possibly execute arbitrary code via a series of packets in loopback mode...

PT-2015-7558

Name of the Vulnerable Software and Affected Versions QEMU affected versions not specified Description The issue is related to a buffer overflow in the pcnet receive function, which can be triggered when a guest NIC has a larger MTU, allowing remote attackers to cause a denial of service guest OS...

UBUNTU-CVE-2015-7512

Buffer overflow in the pcnetreceive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service guest OS crash or execute arbitrary code via a large packet...

GLSA-201510-02 : QEMU: Arbitrary code execution

The remote host is affected by the vulnerability described in GLSA-201510-02 QEMU: Arbitrary code execution Heap-based buffer overflow has been found in QEMUs PCNET controller. Impact : A remote attacker could execute arbitrary code via a specially crafted packets. Workaround : There is no known...

QEMU: Arbitrary code execution

Background QEMU is a generic and open source machine emulator and virtualizer. Description Heap-based buffer overflow has been found in QEMU’s PCNET controller. Impact A remote attacker could execute arbitrary code via a specially crafted packets. Workaround There is no known workaround at this...

Fedora 21 : qemu-2.1.3-9.fc21 (2015-13404)

Fix crash in qemuspicecreatedisplay bz 1163047 CVE-2015-3209: pcnet: multi-tmd buffer overflow in the tx path bz 1230536 CVE-2015-3214: i8254: out-of-bounds memory access bz 1243728 CVE-2015-5154: ide: atapi: heap overflow during I/O buffer memory access bz 1247141 CVE-2015-5745: buffer overflow...

SUSE SLES11 Security Update : kvm (SUSE-SU-2015:1426-1)

kvm was updated to fix two security issues. The following vulnerabilities were fixed : - CVE-2015-5154: Host code execution via IDE subsystem CD-ROM bsc938344. - CVE-2015-3209: Fix buffer overflow in pcnet emulation bsc932770. Note that Tenable Network Security has extracted the preceding...

MGASA-2015-0310 Updated qemu package fixes security vulnerability

Matt Tait discovered that QEMU incorrectly handled the virtual PCNET driver. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process CVE-2015-3209. Kurt Seifried discovered that QEMU incorrectly handl...