CVE-2018-19976

CVE-2018-19976 involves YARA 3.8.1 where bytecode in a specially crafted compiled rule can reveal information about the host environment via libyara/exec.c, a consequence of how the YARA VM is designed. Public descriptions in CNVD and OSV confirm an environment-information exposure vulnerability ...

CVE-2018-19975

In YARA 3.8.1, bytecode in a specially crafted compiled rule can read data from any arbitrary address in memory, in libyara/exec.c. Specifically, OPCOUNT can read a DWORD...

CVE-2018-19975

CVE-2018-19975 affects YARA 3.8.1. The vulnerability arises in libyara/exec.c where specially crafted compiled rules’ bytecode can cause an OP_COUNT operation to read a DWORD from an arbitrary memory address, enabling potential data disclosure. Documented impact indicates confidentiality risk; no...

CVE-2018-19974

In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c. This can allow attackers to discover addresses in the real stack not the YARA virtual stack...

CVE-2018-19974

In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c. This can allow attackers to discover addresses in the real stack not the YARA virtual stack...

CVE-2018-19976

In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual machine...

PT-2018-15181

Name of the Vulnerable Software and Affected Versions YARA version 3.8.1 Description The issue allows bytecode in a specially crafted compiled rule to read data from any arbitrary address in memory. This is specifically related to OP COUNT, which can read a DWORD. The problem is located in...

PT-2018-15182

Name of the Vulnerable Software and Affected Versions YARA version 3.8.1 Description The issue arises from the design of the YARA virtual machine, where bytecode in a specially crafted compiled rule can expose information about its environment. This occurs in the libyara/exec.c component...

PT-2018-15180

Name of the Vulnerable Software and Affected Versions YARA version 3.8.1 Description The issue allows attackers to discover addresses in the real stack by reading uninitialized data from VM scratch memory in libyara/exec.c when bytecode in a specially crafted compiled rule is executed...

yara/rules_fuzzer: Heap-use-after-free in yr_re_ast_extract_literal

Project: https://github.com/VirusTotal/yara.git Detailed report: https://oss-fuzz.com/testcase?key=5644000564871168 Project: yara Fuzzer: libFuzzeryararulesfuzzer Fuzz target binary: rulesfuzzer Job Type: libfuzzerasanyara Platform Id: linux Crash Type: Heap-use-after-free READ 4 Crash Address:...

yara/rules_fuzzer: Heap-use-after-free in yr_re_ast_split_at_chaining_point

Project: https://github.com/VirusTotal/yara.git Detailed report: https://oss-fuzz.com/testcase?key=5732444007825408 Project: yara Fuzzer: libFuzzeryararulesfuzzer Fuzz target binary: rulesfuzzer Job Type: libfuzzerasanyara Platform Id: linux Crash Type: Heap-use-after-free READ 4 Crash Address:...

KoffeyMaker: notebook vs. ATM

Despite CCTV and the risk of being caught by security staff, attacks on ATMs using a direct connection — so-called black box attacks — are still popular with cybercriminals. The main reason is the low "entry requirements" for would-be cyber-robbers: specialized sites offer both the necessary tool...

Partner Perspectives: Notes from the Field: Extending Carbon Black Visibility to Undetected Malware

Daniel LaVoie is a Senior Solutions Specialist at ReversingLabs. On a recent customer visit, I asked the company’s Director of Security Operations how ReversingLabs came to be deployed as a part of their SOC tool set. The answer was quite interesting, and one that I wanted to share with our blog...

yara/dotnet_fuzzer: Crash in dotnet_parse_tilde_2

Project: https://github.com/VirusTotal/yara.git Detailed report: https://oss-fuzz.com/testcase?key=5668423703461888 Project: yara Fuzzer: libFuzzeryaradotnetfuzzer Fuzz target binary: dotnetfuzzer Job Type: libfuzzermsanyara Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0x72100001000...

FindYara - IDA Python Plugin To Scan Binary With Yara Rules

Use this IDA python plugin to scan your binary with yara rules. All the yara rule matches will be listed with their offset so you can quickly hop to them! All credit for this plugin and the code goes to David Berard @p0ly This plugin is copied from David's excellent findcrypt-yara plugin. This...

Real-time File Scanning System: Strelka

Strelka is a real-time file scanning system used for threat hunting, threat detection, and incident response. Based on the design established by Lockheed Martin’s Laika BOSS and similar projects, Strelka’s purpose is to perform file extraction and metadata collection at huge scale. Strelka differ...

SUSE SLES12 Security Update : clamav (SUSE-SU-2018:2323-2)

This update for clamav to version 0.100.1 fixes the following issues : The following security vulnerabilities were addressed : CVE-2018-0360: HWP integer overflow, infinite loop vulnerability bsc1101410 CVE-2018-0361: PDF object length check, unreasonably long time to parse relatively small file...

SUSE-SU-2018:2323-2 Security update for clamav

This update for clamav to version 0.100.1 fixes the following issues: The following security vulnerabilities were addressed: - CVE-2018-0360: HWP integer overflow, infinite loop vulnerability bsc1101410 - CVE-2018-0361: PDF object length check, unreasonably long time to parse relatively small fil...

[SECURITY] Fedora 28 Update: yara-3.8.1-1.fc28

YARA is a tool aimed at but not limited to helping malware researchers to identify and classify malware samples. With YARA you can create descriptions of malware families or whatever you want to describe based on textual or binary patterns. Each description, a.k.a rule, consists of a set of strin...

[SECURITY] Fedora 27 Update: yara-3.8.1-1.fc27

YARA is a tool aimed at but not limited to helping malware researchers to identify and classify malware samples. With YARA you can create descriptions of malware families or whatever you want to describe based on textual or binary patterns. Each description, a.k.a rule, consists of a set of strin...