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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.70% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- haxx/curl · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 4.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlPatch
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlPatch
- http://www.securityfocus.com/bid/104207Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040933Third Party Advisory, VDB Entry
- https://curl.haxx.se/docs/adv_2018-82c2.htmlPatch, Vendor Advisory
- https://security.gentoo.org/glsa/201806-05Third Party Advisory
- https://usn.ubuntu.com/3648-1/Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.htmlPatch
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlPatch
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlPatch
- http://www.securityfocus.com/bid/104207Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040933Third Party Advisory, VDB Entry
- https://curl.haxx.se/docs/adv_2018-82c2.htmlPatch, Vendor Advisory
- https://security.gentoo.org/glsa/201806-05Third Party Advisory
- https://usn.ubuntu.com/3648-1/Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.htmlPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.