Buffer overflow in Redis
CVE-2022-24834
Redis is an in-memory database that persists on disk. A specially crafted Lua script executing in Redis can trigger a heap overflow in the cjson library, and result with heap corruption and potentially remote code execution. The problem exists in all versions of Redis with Lua scripting support, starting from 2.6, and affects only authenticated and authorized users. The problem is fixed in versions 7.0.12, 6.2.13, and 6.0.20.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.411 (98.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.414 · newest: 0.411 · change: -0.003
Affected products
- Redis — versions >= 7.0.0, < 7.0.12, >= 6.2.0, < 6.2.13, >= 6.0.0, < 6.0.20
- Fedoraproject Fedora — versions 37, 38
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/redis/redis/security/advisories/GHSA-p8x2-9v9q-c838 (Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230814-0006/
Frequently asked questions
- What is CVE-2022-24834?
- CVE-2022-24834 is a high-severity vulnerability in Redis, classified under Heap-based Buffer Overflow. CVSS score: 7.0/10. Published 2023-07-13.
- How severe is CVE-2022-24834?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2022-24834 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.