VulnerabilityModified
CVE-2017-9527
The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.
HIGH 7.8EPSS 0.97%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.97%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.97% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- mruby/mruby · debian/debian linux
- Source
- cve@mitre.org
References
- https://github.com/mruby/mruby/commit/5c114c91d4ff31859fcd84cf8bf349b737b90d99Issue Tracking, Patch, Third Party Advisory
- https://github.com/mruby/mruby/issues/3486Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00006.htmlMailing List, Third Party Advisory
- https://github.com/mruby/mruby/commit/5c114c91d4ff31859fcd84cf8bf349b737b90d99Issue Tracking, Patch, Third Party Advisory
- https://github.com/mruby/mruby/issues/3486Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00006.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.