Libvirt Security Notice: LSN-2018-0004 ====================================== Summary: QEMU agent denial of service Reported on: 20180301 Published on: 20180314 Fixed on: 20180314 Reported by: Daniel P. Berrangé Patched by: Daniel P. Berrangé See also: CVE-2018-1064 Description ----------- The libvirt code that reads data from the QEMU guest agent will read data until encountering a newline, buffering all data in memory with no upper limit applied. Impact ------ A malicious guest administrator can cause the libvirtd daemon to consume an arbitrary amount of memory by sending lots of data without any newline characters. Workaround ---------- Remove the guest agent configuration from any virtual machine that is untrustworthy and reboot it Affected product ---------------- Name: libvirt Repository: https://gitlab.com/libvirt/libvirt Branch: master Broken in: v0.9.10 Broken in: v0.9.11 Broken in: v0.9.12 Broken in: v0.9.13 Broken in: v0.10.0 Broken in: v0.10.1 Broken in: v0.10.2 Broken in: v1.0.0 Broken in: v1.0.1 Broken in: v1.0.2 Broken in: v1.0.3 Broken in: v1.0.4 Broken in: v1.0.5 Broken in: v1.0.6 Broken in: v1.1.0 Broken in: v1.1.1 Broken in: v1.1.2 Broken in: v1.1.3 Broken in: v1.1.4 Broken in: v1.2.0 Broken in: v1.2.1 Broken in: v1.2.2 Broken in: v1.2.3 Broken in: v1.2.4 Broken in: v1.2.5 Broken in: v1.2.6 Broken in: v1.2.7 Broken in: v1.2.8 Broken in: v1.2.9 Broken in: v1.2.10 Broken in: v1.2.11 Broken in: v1.2.12 Broken in: v1.2.13 Broken in: v1.2.14 Broken in: v1.2.15 Broken in: v1.2.16 Broken in: v1.2.17 Broken in: v1.2.18 Broken in: v1.2.19 Broken in: v1.2.20 Broken in: v1.2.21 Broken in: v1.3.0 Broken in: v1.3.1 Broken in: v1.3.2 Broken in: v1.3.3 Broken in: v1.3.4 Broken in: v1.3.5 Broken in: v2.0.0 Broken in: v2.1.0 Broken in: v2.2.0 Broken in: v2.3.0 Broken in: v2.4.0 Broken in: v2.5.0 Broken in: v3.0.0 Broken in: v3.1.0 Broken in: v3.2.0 Broken in: v3.3.0 Broken in: v3.4.0 Broken in: v3.5.0 Broken in: v3.6.0 Broken in: v3.7.0 Broken in: v3.8.0 Broken in: v3.9.0 Broken in: v3.10.0 Broken in: v4.0.0 Broken in: v4.1.0 Fixed in: v4.2.0 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Fixed by: fbf31e1a4cd19d6f6e33e0937a009775cd7d9513 Branch: v0.9.11-maint Broken in: v0.9.11.1 Broken in: v0.9.11.2 Broken in: v0.9.11.3 Broken in: v0.9.11.4 Broken in: v0.9.11.5 Broken in: v0.9.11.6 Broken in: v0.9.11.7 Broken in: v0.9.11.8 Broken in: v0.9.11.9 Broken in: v0.9.11.10 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v0.9.12-maint Broken in: v0.9.12.1 Broken in: v0.9.12.2 Broken in: v0.9.12.3 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v0.10.2-maint Broken in: v0.10.2.1 Broken in: v0.10.2.2 Broken in: v0.10.2.3 Broken in: v0.10.2.4 Broken in: v0.10.2.5 Broken in: v0.10.2.6 Broken in: v0.10.2.7 Broken in: v0.10.2.8 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.0.0-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.0.1-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.0.2-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.0.3-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.0.4-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.0.5-maint Broken in: v1.0.5.1 Broken in: v1.0.5.2 Broken in: v1.0.5.3 Broken in: v1.0.5.4 Broken in: v1.0.5.5 Broken in: v1.0.5.6 Broken in: v1.0.5.7 Broken in: v1.0.5.8 Broken in: v1.0.5.9 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.0.6-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.1.0-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.1.1-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.1.2-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.1.3-maint Broken in: v1.1.3.1 Broken in: v1.1.3.2 Broken in: v1.1.3.3 Broken in: v1.1.3.4 Broken in: v1.1.3.5 Broken in: v1.1.3.6 Broken in: v1.1.3.7 Broken in: v1.1.3.8 Broken in: v1.1.3.9 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.1.4-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.0-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.1-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.2-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.3-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.4-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.5-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.6-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.7-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.8-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.9-maint Broken in: v1.2.9.1 Broken in: v1.2.9.2 Broken in: v1.2.9.3 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.10-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.11-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.12-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.13-maint Broken in: v1.2.13.1 Broken in: v1.2.13.2 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.14-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.15-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.16-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.17-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.18-maint Broken in: v1.2.18.1 Broken in: v1.2.18.2 Broken in: v1.2.18.3 Broken in: v1.2.18.4 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.19-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.20-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.2.21-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.3.0-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.3.1-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.3.2-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.3.3-maint Broken in: v1.3.3.1 Broken in: v1.3.3.2 Broken in: v1.3.3.3 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.3.4-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v1.3.5-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v2.0-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v2.1-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v2.2-maint Broken in: v2.2.1 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v3.0-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v3.2-maint Broken in: v3.2.1 Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v3.7-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9 Branch: v4.1-maint Broken by: c160ce3316852a797d7b06b4ee101233866e69a9