-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2019:2899-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:2899 Issue date: 2019-09-25 CVE Names: CVE-2019-1125 CVE-2019-14835 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support, Red Hat Enterprise Linux 7.2 Telco Extended Update Support, and Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Server AUS (v. 7.2) - noarch, x86_64 Red Hat Enterprise Linux Server E4S (v. 7.2) - noarch, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.2) - noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * A buffer overflow flaw was found in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host. (CVE-2019-14835) * kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * fs deadlock when a memory allocation waits on page writeback in NOFS context (BZ#1729103) * fragmented packets timing out (BZ#1729409) * kernel build: speed up debuginfo extraction (BZ#1731460) * use "make -jN" for modules_install (BZ#1735079) * shmem: consider shm_mnt as a long-term mount (BZ#1737374) * raid1d can hang in freeze_array if handling a mix of read and write errors (BZ#1737792) * Backport TCP follow-up for small buffers (BZ#1739125) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1724389 - CVE-2019-1125 kernel: hw: Spectre SWAPGS gadget vulnerability 1750727 - CVE-2019-14835 kernel: vhost-net: guest to host kernel escape during migration 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.2): Source: kernel-3.10.0-327.82.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.82.1.el7.noarch.rpm kernel-doc-3.10.0-327.82.1.el7.noarch.rpm x86_64: kernel-3.10.0-327.82.1.el7.x86_64.rpm kernel-debug-3.10.0-327.82.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm kernel-devel-3.10.0-327.82.1.el7.x86_64.rpm kernel-headers-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.82.1.el7.x86_64.rpm perf-3.10.0-327.82.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm python-perf-3.10.0-327.82.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.2): Source: kernel-3.10.0-327.82.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.82.1.el7.noarch.rpm kernel-doc-3.10.0-327.82.1.el7.noarch.rpm x86_64: kernel-3.10.0-327.82.1.el7.x86_64.rpm kernel-debug-3.10.0-327.82.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm kernel-devel-3.10.0-327.82.1.el7.x86_64.rpm kernel-headers-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.82.1.el7.x86_64.rpm perf-3.10.0-327.82.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm python-perf-3.10.0-327.82.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.2): Source: kernel-3.10.0-327.82.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.82.1.el7.noarch.rpm kernel-doc-3.10.0-327.82.1.el7.noarch.rpm x86_64: kernel-3.10.0-327.82.1.el7.x86_64.rpm kernel-debug-3.10.0-327.82.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm kernel-devel-3.10.0-327.82.1.el7.x86_64.rpm kernel-headers-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.82.1.el7.x86_64.rpm perf-3.10.0-327.82.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm python-perf-3.10.0-327.82.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 7.2): x86_64: kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.82.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional E4S (v. 7.2): x86_64: kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.82.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 7.2): x86_64: kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.82.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2019-1125 https://access.redhat.com/security/cve/CVE-2019-14835 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/articles/4329821 https://access.redhat.com/security/vulnerabilities/kernel-vhost 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXYtbANzjgjWX9erEAQiXbhAAj+34UgAIhJLCg/hNkzjZN1VH8DYLbN2p sIC116NtyojbTTSRQXCH1/hwfn8ywnbEFK7IhZCn/V8M283ALxZG88+HS61SNvrN 0ckyt5heoH7uBKddAnNnDIekO+H5aSNnM9RLY/pKUpJJTYYCO59mAggHm+R2UvNW PWc4fHZTIdvzB5xtQhlnauZg9ypoKcxmn+uFhvMDpVBxZVPTh0sdfd20C5jLDOlE 2ecxTE39Zy6zrm0lnqT/epeNz233qq8a62GhXSggqt/35L6mgsol/rbAPlo1g7Qo 3Swd5zM+VOhoalMptpxYus7iOhfhmQK/IgUUq9qZHUF2QFL4rsDoGb4Lga+N+oVh fyfrEHVhw9sHPb8iwbUHGLj9e3gx+ASln/u4ZMMzH8b+15TQcBapl4P+8xNqRE4o XmXSTuyfZ3RU3O/SUVACf7IkHbx/Ej1+btQLqXaQQozOJElUdj2du+Hhz63TG1v6 d1LNnLYaljsW7d40lNylJiuVVuB4Uu3ZBfW0ztVSclvsrE2TEMSNYKia/JXXoad1 ifWeUpDP48pdJ7aNmdbvTZDGtXhFcPBzuKvR0iJuiLPEcGrI0GIltEDhiMoBtX4r UrIh2QB/PAPYPYkLkJbQ1HI/dFzfr3zw4RdPyrG7lhI+jk2fubpfyx5n51hNmXVA AqATMj2NTMM=jPaw -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce