CVE-2026-35233 Affecting dtrace package, versions <2.0.7-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.11% (2nd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-DTRACE-16415214
  • published4 May 2026
  • disclosed1 May 2026

Introduced: 1 May 2026

CVE-2026-35233  (opens in a new tab)

How to fix?

Upgrade Debian:unstable dtrace to version 2.0.7-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dtrace package and not the dtrace package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range sh_link field. When root-level dtrace attaches to -- or instruments -- that process (via dtrace -p , pid probes, or USDT), the ELF parser reads heap memory beyond the allocated section cache array without any bounds check. This results in an uninitialized/out-of-bounds heap read that can cause a NULL pointer dereference crash of the dtrace process (DoS), or -- depending on heap layout -- a read-then-use of a garbage pointer controlled by adjacent allocations, providing a foothold toward further exploitation in a privileged context.

CVSS Base Scores

version 3.1