CVEvulnerability
CVE-2020-37239
9.3 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2026-05-16
- Last modified
- 2026-09-29
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 9.3 CRITICAL — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-415
Description
libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety checks by exploiting signature overwriting in freed chunks. Attackers can call babl_free() twice on the same pointer without triggering detection, as libc's malloc metadata overwrites babl's signature field upon freeing, enabling potential memory corruption and code execution.
Related
Weakness · CWE (1)
- CWE-415 Double Free weakness
References
- https://www.exploit-db.com/exploits/49259 www.exploit-db.com
- https://www.gegl.org www.gegl.org
- https://www.gegl.org/babl/ www.gegl.org
- https://www.vulncheck.com/advisories/libbabl-broken-double-free-detection-memory-safety www.vulncheck.com