CVE-2020-37239
9.3
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Gegl | libbabl | 0.1.62 | affected |
Weaknesses
- CWE-415: Double Free
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: total
References
- https://www.exploit-db.com/exploits/49259
- https://www.gegl.org
- https://www.gegl.org/babl/
- https://www.vulncheck.com/advisories/libbabl-broken-double-free-detection-memory-safety
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