Disclosure summary
GNU Binutils thru 2.45.1 readelf contains a denial-of-service vulnerability when processing a crafted binary with malformed DWARF loclists data. A logic flaw in the DWARF parsing code can cause readelf to repeatedly print the same table output without making forward progress, resulting in an unbounded output loop that never terminates unless externally interrupted. A local attacker can trigger this behavior by supplying a malicious input file, causing excessive CPU and I/O usage and preventing readelf from completing its analysis.
Source-reported weakness categories
CWE-835
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2026-Mar
Open original source · Updated Oct 06, 2026
GNU Binutils thru 2.45.1 readelf contains a denial-of-service vulnerability when processing a crafted binary with malformed DWARF loclists data. A logic flaw in the DWARF parsing code can cause readelf to repeatedly print the same table output without making forward progress, resulting in an unbounded output loop that never terminates unless externally interrupted. A local attacker can trigger this behavior by supplying a malicious input file, causing excessive CPU and I/O usage and preventing readelf from completing its analysis.
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 6.2
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | cbl2 binutils 2.37-20 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 binutils 2.41-10 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 binutils 2.41-11 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 binutils 2.37-20 | (MSRC status code 3) |
| Microsoft update guide | cbl2 binutils 2.37-20 on CBL-Mariner 2.0 | (MSRC status code 3) |
Vendor remediation references
- CBL-Mariner Releases · build 2.41-11 · product IDs 20618-17084, 21200-17084
- Vendor guidance · product IDs 20618-17084, 21200-17084
- Release Notes · product IDs 20936-21692
- Vendor guidance · product IDs 20936-21692
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-03-14T21:01:20-04:00
MODIFIED 2026-10-06T21:54:52-04:00
INGESTED 2026-10-08T12:45:08-04:00