Security update for kvm SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2021:14772-1 Final 1 1 2021-08-03T13:12:31Z current 2021-08-03T13:12:31Z 2021-08-03T13:12:31Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for kvm This update for kvm fixes the following issues: - CVE-2021-3594: invalid pointer initialization may lead to information disclosure in slirp (udp) (bsc#1187367) - CVE-2021-3592: invalid pointer initialization may lead to information disclosure (bootp). (bsc#1187364) - CVE-2021-3416: infinite loop in loopback mode may lead to stack overflow. (bsc#1186473) - CVE-2020-15469: MMIO ops null pointer dereference may lead to DoS. (bsc#1173612) - CVE-2020-11947: iscsi_aio_ioctl_cb in block/iscsi.c has a heap-based buffer over-read. (bsc#1180523) - CVE-2021-20221: out-of-bound heap buffer access via an interrupt ID field. (bsc#1181933) - CVE-2020-25707: infinite loop in e1000e_write_packet_to_guest() in hw/net/e1000e_core.c. (bsc#1178683) - CVE-2020-15863: stack-based overflow in xgmac_enet_send() in hw/net/xgmac.c. (bsc#1174386) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). slessp4-kvm-14772 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2021/suse-su-202114772-1/ Link for SUSE-SU-2021:14772-1 https://lists.suse.com/pipermail/sle-security-updates/2021-August/009246.html E-Mail link for SUSE-SU-2021:14772-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1173612 SUSE Bug 1173612 https://bugzilla.suse.com/1174386 SUSE Bug 1174386 https://bugzilla.suse.com/1178683 SUSE Bug 1178683 https://bugzilla.suse.com/1180523 SUSE Bug 1180523 https://bugzilla.suse.com/1181933 SUSE Bug 1181933 https://bugzilla.suse.com/1186473 SUSE Bug 1186473 https://bugzilla.suse.com/1187364 SUSE Bug 1187364 https://bugzilla.suse.com/1187367 SUSE Bug 1187367 https://www.suse.com/security/cve/CVE-2020-11947/ SUSE CVE CVE-2020-11947 page https://www.suse.com/security/cve/CVE-2020-15469/ SUSE CVE CVE-2020-15469 page https://www.suse.com/security/cve/CVE-2020-15863/ SUSE CVE CVE-2020-15863 page https://www.suse.com/security/cve/CVE-2020-25707/ SUSE CVE CVE-2020-25707 page https://www.suse.com/security/cve/CVE-2021-20221/ SUSE CVE CVE-2021-20221 page https://www.suse.com/security/cve/CVE-2021-3416/ SUSE CVE CVE-2021-3416 page https://www.suse.com/security/cve/CVE-2021-3592/ SUSE CVE CVE-2021-3592 page https://www.suse.com/security/cve/CVE-2021-3594/ SUSE CVE CVE-2021-3594 page SUSE Linux Enterprise Server 11 SP4-LTSS kvm-1.4.2-60.37.1 kvm-1.4.2-60.37.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process memory to an attacker. CVE-2020-11947 SUSE Linux Enterprise Server 11 SP4-LTSS:kvm-1.4.2-60.37.1 moderate 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114772-1/ https://www.suse.com/security/cve/CVE-2020-11947.html CVE-2020-11947 https://bugzilla.suse.com/1180523 SUSE Bug 1180523 In QEMU 4.2.0, a MemoryRegionOps object may lack read/write callback methods, leading to a NULL pointer dereference. CVE-2020-15469 SUSE Linux Enterprise Server 11 SP4-LTSS:kvm-1.4.2-60.37.1 moderate 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114772-1/ https://www.suse.com/security/cve/CVE-2020-15469.html CVE-2020-15469 https://bugzilla.suse.com/1173612 SUSE Bug 1173612 hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555. CVE-2020-15863 SUSE Linux Enterprise Server 11 SP4-LTSS:kvm-1.4.2-60.37.1 important 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114772-1/ https://www.suse.com/security/cve/CVE-2020-15863.html CVE-2020-15863 https://bugzilla.suse.com/1174386 SUSE Bug 1174386 DO NOT USE THIS CANDIDATE NUMBER. Reason: This candidate is a duplicate of CVE-2020-2891 CVE-2020-25707 SUSE Linux Enterprise Server 11 SP4-LTSS:kvm-1.4.2-60.37.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114772-1/ https://www.suse.com/security/cve/CVE-2020-25707.html CVE-2020-25707 https://bugzilla.suse.com/1178683 SUSE Bug 1178683 https://bugzilla.suse.com/1179468 SUSE Bug 1179468 An out-of-bounds heap buffer access issue was found in the ARM Generic Interrupt Controller emulator of QEMU up to and including qemu 4.2.0on aarch64 platform. The issue occurs because while writing an interrupt ID to the controller memory area, it is not masked to be 4 bits wide. It may lead to the said issue while updating controller state fields and their subsequent processing. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario. CVE-2021-20221 SUSE Linux Enterprise Server 11 SP4-LTSS:kvm-1.4.2-60.37.1 moderate 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114772-1/ https://www.suse.com/security/cve/CVE-2021-20221.html CVE-2021-20221 https://bugzilla.suse.com/1181933 SUSE Bug 1181933 A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario. CVE-2021-3416 SUSE Linux Enterprise Server 11 SP4-LTSS:kvm-1.4.2-60.37.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114772-1/ https://www.suse.com/security/cve/CVE-2021-3416.html CVE-2021-3416 https://bugzilla.suse.com/1182968 SUSE Bug 1182968 https://bugzilla.suse.com/1186473 SUSE Bug 1186473 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. CVE-2021-3592 SUSE Linux Enterprise Server 11 SP4-LTSS:kvm-1.4.2-60.37.1 important 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114772-1/ https://www.suse.com/security/cve/CVE-2021-3592.html CVE-2021-3592 https://bugzilla.suse.com/1187364 SUSE Bug 1187364 https://bugzilla.suse.com/1187369 SUSE Bug 1187369 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. CVE-2021-3594 SUSE Linux Enterprise Server 11 SP4-LTSS:kvm-1.4.2-60.37.1 important 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114772-1/ https://www.suse.com/security/cve/CVE-2021-3594.html CVE-2021-3594 https://bugzilla.suse.com/1187367 SUSE Bug 1187367