Out-of-bounds Read in GNU Binutils

CVE-2017-7302

The Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, has a swap_std_reloc_out function in bfd/aoutx.h that is vulnerable to an invalid read (of size 4) because of missing checks for relocs that could not be recognised. This vulnerability causes Binutils utilities like strip to crash.

Vulnerability class: Buffer Overflow

EPSS: 0.024 (82.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-7302?
CVE-2017-7302 is a high-severity vulnerability in GNU Binutils, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2017-03-29.
How severe is CVE-2017-7302?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2017-7302 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.