CVE-2019-5023 describes a memory leak vulnerability in the grsecurity PaX patch affecting specific versions of PaX and grsecurity. The flaw occurs in the read_kmem function when an invalid address is provided, causing a temporary buffer to be allocated but never freed, ultimately leading to a system crash. Rated with a CVSS score of 5.9 (Medium), this vulnerability can be exploited remotely with high attack complexity, requiring an attacker to induce a read to /dev/kmem with an invalid address. The primary impact is system availability due to a denial of service. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.1-4.9.8-201702060653, <= 3.1-4.9.24-201704252333CPE matchmatch criteria | cpe:2.3:a:opensrcsec:grsecurity:*:*:*:*:official:*:*:* | ||
>= 4.9.25, <= 4.9.74CPE matchmatch criteria | cpe:2.3:a:opensrcsec:grsecurity:*:*:*:*:unofficial:*:*:* | ||
>= pax-linux-4.9.8-test1, <= pax-linux-4.9.8-test7CPE matchmatch criteria | cpe:2.3:a:opensrcsec:pax:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.