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CVE-2018-1091

Status Candidate

Overview

In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.

Related Files

Ubuntu Security Notice USN-3738-1
Posted Aug 15, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3738-1 - Svyatoslav Phirsov discovered that the Samba libsmbclient library incorrectly handled extra long filenames. A malicious server could use this issue to cause Samba to crash, resulting in a denial of service, or possibly execute arbitrary code. Volker Mauel discovered that Samba incorrectly handled database output. When used as an Active Directory Domain Controller, a remote authenticated attacker could use this issue to cause Samba to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-10858, CVE-2018-10918, CVE-2018-10919, CVE-2018-1139
SHA-256 | 5221d6d7ec1ae368c2796879860e183bb504d52cfbf35eb129391261b6719f11
Debian Security Advisory 4271-1
Posted Aug 14, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4271-1 - Several vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix.

tags | advisory, vulnerability
systems | linux, unix, debian
advisories | CVE-2018-10858, CVE-2018-10919
SHA-256 | 1cd23e688938ba7d5034395ba01b18fc3d061baf0c1802c7177355634269b102
Ubuntu Security Notice USN-3731-2
Posted Aug 7, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3731-2 - USN-3731-1 fixed a vulnerability in LFTP. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that LFTP incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2018-10916
SHA-256 | 16dfc966b49a1cabdf76c88db0a1e1293d42925b027c434566289bd416c5f170
Slackware Security Advisory - lftp Updates
Posted Aug 3, 2018
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New lftp packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix a security issue.

tags | advisory
systems | linux, slackware
advisories | CVE-2018-10916
SHA-256 | 4d1a0e9f0ae15d343c808a0968276adeae6a3ce95b1692fd5138dd9f3780f520
Red Hat Security Advisory 2018-1318-01
Posted May 8, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-1318-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2017-16939, CVE-2018-1000199, CVE-2018-1068, CVE-2018-1087, CVE-2018-1091, CVE-2018-8897
SHA-256 | cbd3c6c3e9147b3d4a53a27345de22613a5693b4808c489836579c84720b9def
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