Buffer overflow in Sniproxy
CVE-2023-25076
A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.658 (99.3th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.658 · newest: 0.658 · change: 0.000
Affected products
- Sniproxy — versions 0.6.0-2, Master 822bb80df9b7b345cc9eba55df74a07b498819ba
- Sniproxy Project — versions 0.6.0-2, 0.6.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- talosintelligence.com/vulnerability_reports/TALOS-2023-1731 (Exploit, Third Party Advisory, Mitigation)
- github.com/dlundquist/sniproxy/commit/f8d9a433fe22ab2fa15c00179048ab02ae23d583 (Patch)
- lists.debian.org/debian-lts-announce/2023/04/msg00030.html
- www.debian.org/security/2023/dsa-5413
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-25076?
- CVE-2023-25076 is a critical-severity vulnerability in Sniproxy, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2023-03-30.
- How severe is CVE-2023-25076?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-25076 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.