ntfs-3g: Heap buffer overflow triggered by a specially crafted MFT section

The ntfs3g package is susceptible to a heap overflow on crafted input. When processing the MFT, proper bounds checking was not enforced leading to this software flaw. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability...

DEBIAN-CVE-2021-35267

NTFS-3G versions 2021.8.22, a stack buffer overflow can occur when correcting differences in the MFT and MFTMirror allowing for code execution or escalation of privileges when setuid-root...

AZL-6753 CVE-2021-35267 affecting package ntfs-3g for versions less than 2021.8.22-1

NTFS-3G versions 2021.8.22, a stack buffer overflow can occur when correcting differences in the MFT and MFTMirror allowing for code execution or escalation of privileges when setuid-root...

CVE-2021-35269

NTFS-3G versions 2021.8.22, when a specially crafted NTFS attribute from the MFT is setup in the function ntfsattrsetupflag, a heap buffer overflow can occur allowing for code execution and escalation of privileges...

CVE-2021-33289

In NTFS-3G versions 2021.8.22, when a specially crafted MFT section is supplied in an NTFS image a heap buffer overflow can occur and allow for code execution...

UBUNTU-CVE-2021-33285

In NTFS-3G versions 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfsgetattributevalue, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by...

PT-2021-5803 · Ntfs-3G +7 · Ntfs-3G +7

Name of the Vulnerable Software and Affected Versions: NTFS-3G versions prior to 2021.8.22 Description: A stack buffer overflow can occur when correcting differences in the MFT and MFTMirror, allowing for code execution or escalation of privileges when setuid-root. The vulnerability is related to...

PT-2018-10785 · Libyal · Libfsntfs

Name of the Vulnerable Software and Affected Versions: libfsntfs versions through 2018-04-20 Description: The issue allows remote attackers to cause an information disclosure via a crafted ntfs file. This is achieved through a heap-based buffer over-read in the libfsntfs attribute read from mft...

Bye, bye Petya! Decryptor for old versions released.

Following the outbreak of the Petya-based malware in Ukraine, the author of the original version, Janus, decided to release his master key, probably closing the project. You can read the full story here. Based on the released key, we prepared a decryptor that is capable of unlocking all the...

Keeping up with the Petyas: Demystifying the malware family

Last June 27, there was a huge outbreak of a Petya-esque malware with WannaCry-style infector in the Ukraine. Since there is still confusion about how exactly this malware is linked to the original Petya, we have prepared this small guide on the background of the Petya family. The origin of Petya...

All this EternalPetya stuff makes me WannaCry

Another week goes by and yet again we have another ransomware outbreak initially dropped by a malicious software update and eventually spreading within internal networks using several methods - including EternalBlue - the leaked exploit from the ShadowBrokers group. Security researchers can’t see...

EternalPetya and the lost Salsa20 key

We have recently been facing a huge outbreak of a new Petya-like malware armed with an infector similar to WannaCry. The research is still in progress, and the full report will be published soon. In this post, we will focus on some new important aspects of the current malware. The low-level attac...

New Petya Distribution Vectors Bubbling to Surface

Join Kaspersky Lab and Comae Technologies Thursday June 29, 2017 at 10 a.m. Eastern time for a webinar “The Inside Story of the Petya/ExPetr Ransomware.” Click here to attend. While Microsoft and others continue to shore up links between yesterday’s global ransomware outbreak and the update...

Complex Petya-Like Ransomware Outbreak Worse than WannaCry

Join Kaspersky Lab and Comae Technologies Thursday June 29, 2017 at 10 a.m. Eastern time for a webinar “The Inside Story of the Petya/ExPetr Ransomware.” Click here to attend. The attackers behind today’s global ransomware outbreak are spreading the malware using a modified version of the leaked...

NTFS 3.1 - Master File Table Denial of Service

Y0U HAVE BEEN EXPL0ITED!...

Petya Ransomware Installs Mischa As Failsafe

The Petya ransomware strain signaled a new escalation for crypto-malware when it surfaced in March. For the first time, ransomware went beyond encrypting files on local and shared drives and instead set its sights on locking up the Master File Table on compromised machines. Petya did have its...

Researchers Learning More About Petya Ransomware

Researchers are digging through samples of the Petya ransomware, and while they’ve learned some about its inner workings, they still haven’t mastered enough to come up with a decryptor. Petya is the latest twist on crypto-malware. It was found recently targeting companies in Germany in a spam...

Petya Ransomware Master File Table Encryption

First ransomware locked your desktop. Then it encrypted your files. Not long after, webservers, shared drives and backups were targeted. Now? Introducing Petya, ransomware that targets the Master Boot Record. Spotted in email campaigns sent to human resources offices in German companies, the...

CVE-2005-3177

CHKDSK in Microsoft Windows 2000 before Update Rollup 1 for SP4, Windows XP, and Windows Server 2003, when running in fix mode, does not properly handle security descriptors if the master file table contains a large number of files or if the descriptors do not satisfy certain NTFS conventions,...