CVE-2015-7504
HighSummary
Heap-based buffer overflow in the pcnet_receive 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.
Risk Assessment
This vulnerability can lead to instance crashes, resulting in service interruptions. There is also a risk of arbitrary code execution, which may compromise the security of the entire infrastructure.
Recommendation
It is recommended to update QEMU to the latest version to mitigate this vulnerability. Additionally, monitor loopback network traffic for potential exploitation attempts.
Other vulnerabilities in QEMU
See all- CVE-2017-15268High
Qemu through 2.10.0 allows remote attackers to cause a memory leak by triggering slow data-channel read operations, related to io/channel-websock.c.
- CVE-2017-13711High
A use-after-free vulnerability in the sofree function in slirp/socket.c in QEMU allows attackers to cause a denial of service (QEMU instance crash) by failing to properly clear ifq_so from pending packets.
- CVE-2014-0145High
Multiple buffer overflows in QEMU before 1.7.2 and 2.x before 2.0.0 allow local users to cause a denial of service (crash) or possibly execute arbitrary code via a large L1 table in the qcow2_snapshot_load_tmp in the QCOW 2 block driver or various parameters in the DMG block driver.
- CVE-2014-0143High
Multiple integer overflows in QEMU, before version 2.0.0, allow local users to cause a denial of service (crash) by providing crafted input, leading to buffer overflows and memory corruption.
- CVE-2017-10664High
qemu-nbd in QEMU does not ignore SIGPIPE, allowing remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt.
- CVE-2017-8309High
A memory leak in audio/audio.c in QEMU allows remote attackers to cause a denial of service by repeatedly starting and stopping audio capture.
- CVE-2017-8284High
The disas_insn function in QEMU before version 2.9.0 does not limit instruction size in TCG mode without hardware acceleration, allowing local users to gain privileges by creating a modified basic block that injects code into a setuid program.
- CVE-2015-8619High
The Human Monitor Interface support in QEMU allows remote attackers to cause a denial of service through out-of-bounds write and application crash.
- CVE-2015-8567High
A memory leak in QEMU's net/vmxnet3.c allows remote attackers to cause a denial of service through excessive memory consumption.
- CVE-2015-8666High
A heap-based buffer overflow exists in QEMU when built with the Q35-chipset-based PC system emulator. This vulnerability may lead to unauthorized memory access.
Original NVD description (English source)
Heap-based buffer overflow in the pcnet_receive 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.