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AlienVault OTX Vulnerabilities

AlienVault OTX Malware

In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix.

CVE-2021-38604 is a high-severity vulnerability affecting the GNU C Library (glibc) up to version 2.34, specifically within the librt component responsible for real-time extensions. The flaw exists in the file sysdeps/unix/sysv/linux/mq_notify.c, where the handling of certain NOTIFY_REMOVED data is incorrect, leading to a NULL pointer dereference. This vulnerability was introduced inadvertently as a side effect of a previous fix for CVE-2021-33574. A NULL pointer dereference typically causes a program crash, resulting in a denial of service (DoS) condition. The vulnerability is remotely exploitable without requiring authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N). The impact is limited to availability, with no direct confidentiality or integrity compromise. No known exploits have been reported in the wild, and no official patches are linked in the provided data, although it is likely that later glibc versions address this issue. The vulnerability is categorized under CWE-476 (NULL Pointer Dereference), a common programming error that can cause application instability or crashes. Given the widespread use of glibc in Linux-based systems, this vulnerability potentially affects a broad range of applications and services relying on real-time messaging notification features.

Detailed information about CVE-2021-38604: n/a in n/a affecting n/a n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2021-38604: n/a in n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2021-38604: n/a in n/a

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