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Debian LTS: Security Advisory for qemu (DLA-2373-1)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

6.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:S/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

1 year ago

Modified

Modified

1 year ago

Summary

The remote host is missing an update for the 'qemu' package(s) announced via the DLA-2373-1 advisory.

Insight

Insight

The following security issues have been found in qemu, which could potentially result in DoS and execution of arbitrary code. CVE-2020-1711 An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU handled a response coming from an iSCSI server while checking the status of a Logical Address Block (LBA) in an iscsi_co_block_status() routine. A remote user could use this flaw to crash the QEMU process, resulting in a denial of service or potential execution of arbitrary code with privileges of the QEMU process on the host. CVE-2020-13253 An out-of-bounds read access issue was found in the SD Memory Card emulator of the QEMU. It occurs while performing block write commands via sdhci_write(), if a guest user has sent 'address' which is OOB of 's->wp_groups'. A guest user/process may use this flaw to crash the QEMU process resulting in DoS. CVE-2020-14364 An out-of-bounds read/write access issue was found in the USB emulator of the QEMU. It occurs while processing USB packets from a guest, when 'USBDevice->setup_len' exceeds the USBDevice->data_buf[4096], in do_token_{in, out} routines. CVE-2020-16092 An assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c

Affected Software

Affected Software

'qemu' package(s) on Debian Linux.

Detection Method

Detection Method

Checks if a vulnerable package version is present on the target host.

Solution

Solution

For Debian 9 stretch, these problems have been fixed in version 1:2.8+dfsg-6+deb9u11. We recommend that you upgrade your qemu packages.

Common Vulnerabilities and Exposures (CVE)