Medium: glibc

Issue Overview: A buffer overflow has been discovered in the GNU C Library aka glibc or libc6 in the mempcpyavx512novzeroupper function when particular conditions are met. An attacker could use this vulnerability to cause a denial of service or potentially execute code.CVE-2018-11237 Affected...

Amazon Linux 2 : fuse (ALAS-2018-1123)

A vulnerability was discovered in fuse. When SELinux is active, fusermount is vulnerable to a restriction bypass. This allows non-root users to mount a FUSE file system with the 'allowother' mount option regardless of whether 'userallowother' is set in the fuse configuration. An attacker may use...

Amazon Linux 2 : wpa_supplicant (ALAS-2018-1122)

An issue was discovered in rsnsupp/wpa.c in wpasupplicant 2.0 through 2.6. Under certain conditions, the integrity of EAPOL-Key messages is not checked, leading to a decryption oracle. An attacker within range of the Access Point and client can abuse the vulnerability to recover sensitive...

Amazon Linux 2 : xerces-c (ALAS-2018-1124)

A stack exhaustion flaw was found in the way Xerces-C XML parser handled deeply nested DTDs. An attacker could potentially use this flaw to crash an application using Xerces-C by tricking it into processing specially crafted data.CVE-2016-4463 C Tenable Network Security, Inc. The descriptive text...

Amazon Linux 2 : wget (ALAS-2018-1121)

A cookie injection flaw was found in wget. An attacker can create a malicious website which, when accessed, overrides cookies belonging to arbitrary domains.CVE-2018-0494 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Amazon Linux 2...

Amazon Linux 2 : gnutls (ALAS-2018-1120)

It was found that GnuTLS's implementation of HMAC-SHA-256 was vulnerable to Lucky Thirteen-style attack. A remote attacker could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets.CVE-2018-10844 It was foun...

Medium: fuse

Issue Overview: A vulnerability was discovered in fuse. When SELinux is active, fusermount is vulnerable to a restriction bypass. This allows non-root users to mount a FUSE file system with the 'allowother' mount option regardless of whether 'userallowother' is set in the fuse configuration. An...

Amazon Linux 2 : spamassassin (ALAS-2018-1103)

A flaw was found in the way SpamAssassin processes HTML email containing unclosed HTML tags. A carefully crafted mail message could cause SpamAssassin to consume significant resources. If a large number of these messages are sent, a denial of service could occur potentially delaying or preventing...

Amazon Linux 2 : tomcat (ALAS-2018-1105)

An improper handing of overflow in the UTF-8 decoder with supplementary characters can lead to an infinite loop in the decoder causing a Denial of Service.CVE-2018-1336 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Amazon Linux 2...

Amazon Linux 2 : openssl (ALAS-2018-1102)

During key agreement in a TLS handshake using a DHE based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This...

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 : 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 : 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 : 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 : 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 : 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...

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...

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...