CVE-2022-22728
Published: 25 August 2022
Summary
CVE-2022-22728 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Fedoraproject Fedora. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 4.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A flaw in Apache libapreq2 versions 2.16 and earlier can trigger a buffer overflow during multipart form upload processing. The issue is tracked as CWE-120 and carries a CVSS 3.1 score of 7.5, reflecting network attack vector, low complexity, and no required credentials or user interaction, with the primary impact being high availability loss.
A remote attacker can send a specially crafted HTTP request containing a multipart form that overflows an internal buffer. Successful exploitation crashes the affected process, resulting in a denial-of-service condition without any data disclosure or integrity impact.
Public advisories and discussion threads referenced in the OSS-Security mailing lists from August and December 2022 provide additional technical detail on the flaw but do not describe specific patches or configuration workarounds in the supplied references. The EPSS score has remained flat at 0.2025 with no observed rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-27871
Vulnerability details
A flaw in Apache libapreq2 versions 2.16 and earlier could cause a buffer overflow while processing multipart form uploads. A remote attacker could send a request causing a process crash which could lead to a denial of service attack.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.