Buffer overflow in Haxx Curl
CVE-2018-1000300
curl version curl 7.54.1 to and including curl 7.59.0 contains a CWE-122: Heap-based Buffer Overflow vulnerability in denial of service and more that can result in curl might overflow a heap based memory buffer when closing down an FTP connection with very long server command replies.. This vulnerability appears to have been fixed in curl < 7.54.1 and curl >= 7.60.0.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.048 (91.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.048 · newest: 0.048 · change: 0.000
Affected products
- Haxx Curl
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html (Patch)
- www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html (Patch)
- curl.haxx.se/docs/adv_2018-82c2.html (Patch, Vendor Advisory)
- security.gentoo.org/glsa/201806-05 (vendor-advisory, Third Party Advisory)
- www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html (Patch)
- usn.ubuntu.com/3648-1/ (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/104207 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1040933 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-1000300?
- CVE-2018-1000300 is a critical-severity vulnerability in Haxx Curl, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-05-24.
- How severe is CVE-2018-1000300?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-1000300 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.