PT-2026-36530 · Dtrace · Dtrace

Vishal Panchani · Published 2026-05-01 · Updated 2026-05-02 · CVE-2026-35233

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Name of the Vulnerable Software and Affected Versions dtrace (affected versions not specified)

Description An unprivileged attacker can create a user-space process with a malicious ELF binary containing an out-of-range sh link field. When a root-level dtrace process attaches to or instruments that process using dtrace -p, pid probes, or USDT, the ELF parser reads heap memory beyond the allocated section cache array due to a lack of bounds checks. This leads to an uninitialized or out-of-bounds heap read, which may cause a NULL pointer dereference resulting in a denial of service (DoS) crash of the dtrace process, or potentially allow a read-then-use of a garbage pointer controlled by adjacent allocations, enabling further exploitation in a privileged context.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-35233

Affected Products

Dtrace

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2026-35233 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-35233 · Security Note
• https://linux.oracle.com/cve/CVE-2026-35233.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-35233 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2026-50251.html · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-35233 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2026-50250.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2026-50249.html · Vendor Advisory
• https://twitter.com/vis_hacker/status/2050611546330435651 · Twitter Post
• https://t.me/CVEtracker/52451 · Telegram Post