Important: nghttp2

Issue Overview: The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. CVE-2023-44487 Affected Packages: nghttp2 Note: This advisory is applicable to Amazon...

MITRE: CVE-2023-44487 HTTP/2 Rapid Reset Attack

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A week in security (October 2 - October 8)

Last week on Malwarebytes Labs: Multi-factor authentication has proven it works, so what are we waiting for? Amazon Prime email scammer snatches defeat from the jaws of victory 2023 MITRE ATT&CK® Evaluation results: Malwarebytes earns high marks for detection, blocks initial malware executions...

2023 MITRE ATT&CK® Evaluation results: Malwarebytes earns high marks for detection, blocks initial malware executions

MITRE Engenuity released its 2023 ATT&CK Evaluation results, with Malwarebytes blocking initial malware executions and earning high marks for detection. The evaluation tested 30 vendor solutions against Turla, a sophisticated Russia-based advanced persistent threat APT group with victims in over ...

Medium: mutt

Issue Overview: Null pointer dereference when viewing a specially crafted email in Mutt 1.5.2 1.5.2 2.2.12 CVE-2023-4875 Affected Packages: mutt Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras...

Medium: mdadm

Issue Overview: Buffer overflow in some IntelR SSD Tools software before version mdadm-4.2-rc2 may allow a privileged user to potentially enable escalation of privilege via local access. CVE-2023-28736 Uncontrolled resource consumption in some IntelR SSD Tools software before version mdadm-4.2-rc...

Low: libarchive

Issue Overview: No CVE associated with this advisory Affected Packages: libarchive Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories. Issue Correction: Run yum update libarchive or yum upda...

Medium: ImageMagick

Issue Overview: A vulnerability was found in ImageMagick. This issue occurs as an undefined behavior, casting double to sizet in svg, mvg and other coders. CVE-2023-34151 Affected Packages: ImageMagick Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section...

Medium: wireshark

Issue Overview: LISP dissector large loop in Wireshark 4.0.0 to 4.0.4 and 3.6.0 to 3.6.12 allows denial of service via packet injection or crafted capture file CVE-2023-1993 Affected Packages: wireshark Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ sectio...

Medium: wireshark

Issue Overview: BT SDP dissector infinite loop in Wireshark 4.0.0 to 4.0.7 and 3.6.0 to 3.6.15 allows denial of service via packet injection or crafted capture file CVE-2023-4511 BT SDP dissector memory leak in Wireshark 4.0.0 to 4.0.7 and 3.6.0 to 3.6.15 allows denial of service via packet...

Medium: libtiff

Issue Overview: A vulnerability was found in libtiff library. This security flaw causes a heap buffer overflow issue via TIFFTAGINKNAMES and TIFFTAGNUMBEROFINKS values. CVE-2023-30774 Affected Packages: libtiff Issue Correction: Run yum update libtiff or yum update --advisory ALAS-2023-1847 to...

Medium: poppler

Issue Overview: Uncontrolled Recursion in pdfinfo, and pdftops in poppler 0.89.0 allows remote attackers to cause a denial of service via crafted input. CVE-2020-23804 Affected Packages: poppler Issue Correction: Run yum update poppler or yum update --advisory ALAS-2023-1852 to update your system...

Medium: libxml2

Issue Overview: Xmlsoft Libxml2 v2.11.0 was discovered to contain a global buffer overflow via the xmlSAX2StartElement function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service DoS via supplying a crafted XML file. CVE-2023-39615 Affected Packages: libxml2 Issu...

Important: vim

Issue Overview: Use After Free in GitHub repository vim/vim prior to 9.0.1840. CVE-2023-4733 Use After Free in GitHub repository vim/vim prior to 9.0.1857. CVE-2023-4750 Use After Free in GitHub repository vim/vim prior to 9.0.1858. CVE-2023-4752 Affected Packages: vim Issue Correction: Run yum...

Medium: libtiff

Issue Overview: A NULL pointer dereference in TIFFClose is caused by a failure to open an output file non-existent path or a path that requires permissions like /dev/null while specifying zones. CVE-2023-3316 Affected Packages: libtiff Issue Correction: Run yum update libtiff or yum update...

Medium: ImageMagick

Issue Overview: A vulnerability was found in ImageMagick. This issue occurs as an undefined behavior, casting double to sizet in svg, mvg and other coders. CVE-2023-34151 Affected Packages: ImageMagick Issue Correction: Run yum update ImageMagick or yum update --advisory ALAS-2023-1844 to update...

Medium: gsl

Issue Overview: A buffer overflow can occur when calculating the quantile value using the Statistics Library of GSL GNU Scientific Library, versions 2.5 and 2.6. Processing a maliciously crafted input data for gslstatsquantilefromsorteddata of the library may lead to unexpected application...

Threat Roundup for September 22 to September 29

Today, Talos is publishing a glimpse into the most prevalent threats weve observed between Sept. 22 and Sept. 29. As with previous roundups, this post isnt meant to be an in-depth analysis. Instead, this post will summarize the threats weve observed by highlighting key behavioral characteristics,...

Qualys Survey of Top 10 Exploited Vulnerabilities in 2023

The Qualys Threat Research Unit TRU has thoroughly analyzed vulnerabilities reported in 2023. Our comprehensive study assesses factors including weaponization status, existence in the CISA KEV, instances or usage of malware and ransomware, trending vulnerabilities, various scoring metrics, and...

Medium: ImageMagick

Issue Overview: A memory leak in ImageMagick 7.0.10-45 and 6.9.11-22 allows remote attackers to perform a denial of service via the "identify -help" command. CVE-2022-48541 Affected Packages: ImageMagick Issue Correction: Run yum update ImageMagick or yum update --advisory ALAS-2023-1831 to updat...