Out-of-bounds Read in Haxx Curl
CVE-2017-8817
The FTP wildcard function in curl and libcurl before 7.57.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) or possibly have unspecified other impact via a string that ends with an '[' character.
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: 0.112 (95.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.112 · newest: 0.112 · change: 0.000
Affected products
- Haxx Curl
- Haxx Libcurl
- Debian Linux — versions 8.0, 9.0
- Curl And Libcurl Before 7.57.0 — versions curl and libcurl before 7.57.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.gentoo.org/glsa/201712-04 (vendor-advisory)
- access.redhat.com/errata/RHSA-2018:3558 (vendor-advisory)
- www.securityfocus.com/bid/102057 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2017/11/msg00040.html (mailing-list)
- security.cucumberlinux.com/security/details.php (Third Party Advisory)
- curl.haxx.se/docs/adv_2017-ae72.html (Mitigation, Vendor Advisory)
- www.securitytracker.com/id/1039897 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2017/dsa-4051 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-8817?
- CVE-2017-8817 is a critical-severity vulnerability in Haxx Curl, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2017-11-29.
- How severe is CVE-2017-8817?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-8817 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.