CVE-2019-5008

hw/sparc64/sun4u.c in QEMU 3.1.50 is vulnerable to a NULL pointer dereference, which allows the attacker to cause a denial of service via a device driver.

hw/sparc64/sun4u.c in QEMU 3.1.50 is vulnerable to a NULL pointer dereference, which allows the attacker to cause a denial of service via a device driver.

This update for qemu fixes the following issues:

Security issues fixed:

• CVE-2019-14378: Security fix for heap overflow in ip_reass on big packet input (bsc#1143794).
• CVE-2019-12155: Security fix for null pointer dereference while releasing spice resources (bsc#1135902).
• CVE-2019-13164: Security fix for qemu-bridge-helper ACL can be bypassed when names are too long (bsc#1140402).
• CVE-2019-5008: Fix DoS (NULL pointer dereference) in sparc64 virtual machine possible through guest device driver (bsc#1133031).

Bug fixes and enhancements:

• Upstream tweaked SnowRidge-Server vcpu model to now be simply Snowridge (jsc#SLE-4883)
• Add SnowRidge-Server vcpu model (jsc#SLE-4883)
• Add in documentation about md-clear feature (bsc#1138534)
• Fix SEV issue where older machine type is not processed correctly (bsc#1144087)
• Fix case of a bad pointer in Xen PV usb support code (bsc#1128106)
• Further refine arch-capabilities handling to help with security and performance in Intel hosts (bsc#1134883, bsc#1135210) (fate#327764)
• Add support for one more security/performance related vcpu feature (bsc#1136778) (fate#327796)
• Ignore csske for expanding the cpu model (bsc#1136540)

This update was imported from the SUSE:SLE-15-SP1:Update update project.

This update for qemu fixes the following issues:

Security issues fixed:

• CVE-2019-14378: Security fix for heap overflow in ip_reass on big packet input (bsc#1143794).
• CVE-2019-12155: Security fix for null pointer dereference while releasing spice resources (bsc#1135902).
• CVE-2019-13164: Security fix for qemu-bridge-helper ACL can be bypassed when names are too long (bsc#1140402).
• CVE-2019-5008: Fix DoS (NULL pointer dereference) in sparc64 virtual machine possible through guest device driver (bsc#1133031).

Bug fixes and enhancements:

• Upstream tweaked SnowRidge-Server vcpu model to now be simply Snowridge (jsc#SLE-4883)
• Add SnowRidge-Server vcpu model (jsc#SLE-4883)
• Add in documentation about md-clear feature (bsc#1138534)
• Fix SEV issue where older machine type is not processed correctly (bsc#1144087)
• Fix case of a bad pointer in Xen PV usb support code (bsc#1128106)
• Further refine arch-capabilities handling to help with security and performance in Intel hosts (bsc#1134883, bsc#1135210) (fate#327764)
• Add support for one more security/performance related vcpu feature (bsc#1136778) (fate#327796)
• Ignore csske for expanding the cpu model (bsc#1136540)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12130)

Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12127)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12126)

Kurtis Miller discovered that a buffer overflow existed in QEMU when loading a device tree blob. A local attacker could use this to execute arbitrary code. (CVE-2018-20815)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2019-11091)

It was discovered that a NULL pointer dereference existed in the sun4u power device implementation in QEMU. A local attacker could use this to cause a denial of service. This issue only affected Ubuntu 18.10 and Ubuntu 19.04. (CVE-2019-5008)

William Bowling discovered that an information leak existed in the SLiRP networking implementation of QEMU. An attacker could use this to expose sensitive information. (CVE-2019-9824)