Описание
Security update for qemu
This update for qemu fixes the following issues:
Security issues fixed:
- CVE-2021-3527: usb: unbounded stack allocation in usbredir (bsc#1186012)
- CVE-2021-3582: Fix possible mremap overflow in the pvrdma (bsc#1187499)
- CVE-2021-3592: Fix for slirp: invalid pointer initialization may lead to information disclosure (bootp) (bsc#1187364)
- CVE-2021-3593: Fix for slirp: invalid pointer initialization may lead to information disclosure (udp6) (bsc#1187365)
- CVE-2021-3594: Fix for slirp: invalid pointer initialization may lead to information disclosure (udp) (bsc#1187367)
- CVE-2021-3595: Fixed slirp: invalid pointer initialization may lead to information disclosure (tftp) (bsc#1187366)
- CVE-2021-3607: Ensure correct input on ring init (bsc#1187539)
- CVE-2021-3608: Fix the ring init error flow (bsc#1187538)
- CVE-2021-3611: Fix intel-hda segmentation fault due to stack overflow (bsc#1187529)
- CVE-2021-3682: usbredir: free call on invalid pointer in bufp_alloc (bsc#1189145)
- CVE-2020-35503: NULL pointer dereference issue in megasas-gen2 host bus adapter (bsc#1180432)
- CVE-2020-35504,CVE-2020-35505,CVE-2020-35506: NULL pointer dereference in ESP (bsc#1180433 bsc#1180434 bsc#1180435)
- CVE-2021-20255: eepro100: stack overflow via infinite recursion (bsc#1182651)
This update was imported from the SUSE:SLE-15-SP2:Update update project.
Список пакетов
openSUSE Leap 15.2
Ссылки
- E-Mail link for openSUSE-SU-2021:1202-1
- SUSE Security Ratings
- SUSE Bug 1180432
- SUSE Bug 1180433
- SUSE Bug 1180434
- SUSE Bug 1180435
- SUSE Bug 1182651
- SUSE Bug 1186012
- SUSE Bug 1187364
- SUSE Bug 1187365
- SUSE Bug 1187366
- SUSE Bug 1187367
- SUSE Bug 1187499
- SUSE Bug 1187529
- SUSE Bug 1187538
- SUSE Bug 1187539
- SUSE Bug 1189145
- SUSE CVE CVE-2020-35503 page
- SUSE CVE CVE-2020-35504 page
- SUSE CVE CVE-2020-35505 page
Описание
A NULL pointer dereference flaw was found in the megasas-gen2 SCSI host bus adapter emulation of QEMU in versions before and including 6.0. This issue occurs in the megasas_command_cancelled() callback function while dropping a SCSI request. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Затронутые продукты
Ссылки
- CVE-2020-35503
- SUSE Bug 1180432
Описание
A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions before 6.0.0. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Затронутые продукты
Ссылки
- CVE-2020-35504
- SUSE Bug 1180433
Описание
A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Затронутые продукты
Ссылки
- CVE-2020-35505
- SUSE Bug 1180434
Описание
A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the 'Information Transfer' command (CMD_TI). This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service or potential code execution with the privileges of the QEMU process.
Затронутые продукты
Ссылки
- CVE-2020-35506
- SUSE Bug 1180435
Описание
A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Затронутые продукты
Ссылки
- CVE-2021-20255
- SUSE Bug 1182651
- SUSE Bug 1182654
Описание
A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a single, large transfer request, to reduce the overhead and improve performance. The combined size of the bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a denial of service.
Затронутые продукты
Ссылки
- CVE-2021-3527
- SUSE Bug 1186012
Описание
A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. The issue occurs while handling a "PVRDMA_CMD_CREATE_MR" command due to improper memory remapping (mremap). This flaw allows a malicious guest to crash the QEMU process on the host. The highest threat from this vulnerability is to system availability.
Затронутые продукты
Ссылки
- CVE-2021-3582
- SUSE Bug 1187499
Описание
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
Затронутые продукты
Ссылки
- CVE-2021-3592
- SUSE Bug 1187364
- SUSE Bug 1187369
Описание
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
Затронутые продукты
Ссылки
- CVE-2021-3593
- SUSE Bug 1187365
Описание
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
Затронутые продукты
Ссылки
- CVE-2021-3594
- SUSE Bug 1187367
Описание
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
Затронутые продукты
Ссылки
- CVE-2021-3595
- SUSE Bug 1187366
- SUSE Bug 1187376
Описание
An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Затронутые продукты
Ссылки
- CVE-2021-3607
- SUSE Bug 1187539
Описание
A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest and may result in a crash of QEMU or cause undefined behavior due to the access of an uninitialized pointer. The highest threat from this vulnerability is to system availability.
Затронутые продукты
Ссылки
- CVE-2021-3608
- SUSE Bug 1187538
Описание
A stack overflow vulnerability was found in the Intel HD Audio device (intel-hda) of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. This flaw affects QEMU versions prior to 7.0.0.
Затронутые продукты
Ссылки
- CVE-2021-3611
- SUSE Bug 1187529
- SUSE Bug 1193914
Описание
A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.
Затронутые продукты
Ссылки
- CVE-2021-3682
- SUSE Bug 1189145