Heap based buffer flow in zlog v1.1.0 to v1.2.17 in zlog_rule_new().The size of…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
Summary
Heap based buffer flow in zlog v1.1.0 to v1.2.17 in zlog_rule_new().The size of record_name is MAXLEN_PATH(1024) + 1 but file_path may have data upto MAXLEN_CFG_LINE(MAXLEN_PATH*4) + 1. So a check was missing in zlog_rule_new() while copying the record_name from file_path + 1 which caused the buffer overflow. An attacker can exploit this vulnerability to overwrite the zlog_record_fn record_func function pointer to get arbitrary code execution or potentially cause remote code execution (RCE).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zlog_project:zlog:*:*:*:*:*:*:*:* | — | — | Zlog Project |
- cpe:2.3:a:zlog_project:zlog:*:*:*:*:*:*:*:* Versions — — ·Zlog Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-22857
- 2026-10-03 Alias added: GHSA-6q5p-rp5c-wmph
References
Other 5
- https://github.com/HardySimpson/zlog/
- https://github.com/HardySimpson/zlog/blob/1a7b1a6fb956b92a4079ccc91f30da21f34ca063/src/rule.h#L30
- https://www.cybersecurity-help.cz/vdb/SB2024022842
- https://github.com/HardySimpson/zlog/pull/251
- https://www.ebryx.com/blogs/arbitrary-code-execution-in-zlog-cve-2024-22857
Sources
- CVE-2024-22857 · CVE Program
- CVE-2024-22857 · NVD
- FIRST EPSS
- GHSA-6q5p-rp5c-wmph · GitHub Advisory Database · CC BY 4.0
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