Amazon Linux 2 : kernel (ALAS-2018-1100)

An issue was discovered in the procpidstack function in fs/proc/base.c in the Linux kernel. An attacker with a local account can trick the stack unwinder code to leak stack contents to userspace. The fix allows only root to inspect the kernel stack of an arbitrary task.CVE-2018-17972 A...

Amazon Linux 2 : mod_http2 (ALAS-2018-1104)

In Apache HTTP Server, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.CVE-2018-11763 C Tenable...

Amazon Linux 2 : nss (ALAS-2018-1095)

A flaw was found in the way NSS responded to an SSLv2-compatible ClientHello with a ServerHello that had an all-zero random. A man-in-the-middle attacker could use this flaw in a passive replay attack.CVE-2018-12384 C Tenable Network Security, Inc. The descriptive text and package checks in this...

Amazon Linux 2 : flatpak (ALAS-2018-1096)

It was found that flatpak's D-Bus proxy did not properly filter the access to D-Bus during the authentication protocol. A specially crafted flatpak application could use this flaw to bypass all restrictions imposed by flatpak and have full access to the D-BUS interface.CVE-2018-6560 C Tenable...

Amazon Linux 2 : git (ALAS-2018-1093)

Git before 2.14.5, allows remote code execution during processing of a recursive 'git clone' of a superproject if a .gitmodules file has a URL field beginning with a '-' character.CVE-2018-17456 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted...

Medium: nss

Issue Overview: A flaw was found in the way NSS responded to an SSLv2-compatible ClientHello with a ServerHello that had an all-zero random. A man-in-the-middle attacker could use this flaw in a passive replay attack.CVE-2018-12384 Affected Packages: nss Note: This advisory is applicable to Amazo...

Amazon Linux 2 : kernel (ALAS-2018-1086)

A security flaw was found in the chapservercomputemd5 function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The atta...

Amazon Linux 2 : ghostscript (ALAS-2018-1088)

It was discovered that the ghostscript .shfill operator did not properly validate certain types. An attacker could possibly exploit this to bypass the -dSAFER protection and crash ghostscript or, possibly, execute arbitrary code in the ghostscript context via a specially crafted PostScript...

Important: kernel

Issue Overview: NOTE: CVE-2018-14634 was already fixed in the 4.14 kernel released with the Amazon Linux 2 LTS release. The advisory release date does not accurately reflect the date this was fixed. An integer overflow flaw was found in the Linux kernel's createelftables function. An unprivileged...

Medium: zsh

Issue Overview: An issue was discovered in zsh before 5.6. The beginning of a ! script file was mishandled, potentially leading to an execve call to a program named on the second line.CVE-2018-0502 It was discovered that zsh does not properly validate the shebang of input files and it truncates i...

Amazon Linux 2 : postgresql (ALAS-2018-1080)

A vulnerability was found in libpq, the default PostgreSQL client library where libpq failed to properly reset its internal state between connections. If an affected version of libpq were used with 'host' or 'hostaddr' connection parameters from untrusted input, attackers could bypass client-side...

Amazon Linux 2 : openssh (ALAS-2018-1075)

OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.CVE-2018-15473 C Tenable Network...

Amazon Linux 2 : bind (ALAS-2018-1082)

A denial of service flaw was discovered in bind versions that include the 'deny-answer-aliases' feature. This flaw may allow a remote attacker to trigger an INSIST assert in named leading to termination of the process and a denial of service condition.CVE-2018-5740 %NASLMINLEVEL 70300 C Tenable...

Low: openssh

Issue Overview: OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.CVE-2018-15473 Affecte...

Amazon Linux 2 : mutt (ALAS-2018-1077)

An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. pop.c does not forbid characters that may have unsafe interaction with message-cache pathnames, as demonstrated by a '/' character.CVE-2018-14362 An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-1...

Amazon Linux 2 : qemu-kvm (ALAS-2018-1073)

A heap buffer overflow issue was found in the way SLiRP networking back-end in QEMU processes fragmented packets. It could occur while reassembling the fragmented datagrams of an incoming packet. A privileged user/process inside guest could use this flaw to crash the QEMU process resulting in DoS...

Amazon Linux 2 : policycoreutils (ALAS-2018-1076)

Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state...

Amazon Linux 2 : mariadb (ALAS-2018-1078)

Vulnerability in the MySQL Server component of Oracle MySQL subcomponent: Server: Optimizer. Supported versions that are affected are 5.5.57 and earlier. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successf...

Low: policycoreutils

Issue Overview: Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when takin...

Important: qemu-kvm

Issue Overview: A heap buffer overflow issue was found in the way SLiRP networking back-end in QEMU processes fragmented packets. It could occur while reassembling the fragmented datagrams of an incoming packet. A privileged user/process inside guest could use this flaw to crash the QEMU process...