DEBIAN-CVE-2026-35233
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.
DEBIAN-CVE-2026-35233
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-35233
dtrace
Source reference: /affected/0/package/name
- Affected versions
- 2.0.5-1
Source reference:
/affected/0/versions2.0.6-1Source reference:
/affected/0/versions - Fixed versions
- 2.0.7-1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.7-1"
}
]
}
],
"package": {
"name": "dtrace",
"purl": "pkg:deb/debian/dtrace?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.0.5-1",
"2.0.6-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-35233.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #55988 · Revision 1
- Added to Heist Feed
- Publisher date