CVE-2017-1000257
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
Description
An IMAP FETCH response line indicates the size of the returned data, in number of bytes. When that response says the data is zero bytes, libcurl would pass on that (non-existing) data with a pointer and the size (zero) to the deliver-data function. libcurl's deliver-data function treats zero as a magic number and invokes strlen() on the data to figure out the length. The strlen() is called on a heap based buffer that might not be zero terminated so libcurl might read beyond the end of it into whatever memory lies after (or just crash) and then deliver that to the application as if it was actually downloaded.
Overview
- CVE ID
- CVE-2017-1000257
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2017-10-31T21:29:00
- Last Modified Date
- 2018-11-13T11:29:07
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:* | 1 | OR | 7.20.0 | 7.56.0 |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.1
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://curl.haxx.se/docs/adv_20171023.html | Vendor Advisory |
| http://www.securitytracker.com/id/1039644 | Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/101519 | Third Party Advisory VDB Entry |
| http://www.debian.org/security/2017/dsa-4007 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:3263 | |
| https://security.gentoo.org/glsa/201712-04 | |
| https://access.redhat.com/errata/RHSA-2018:2486 | |
| https://access.redhat.com/errata/RHSA-2018:3558 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-1000257 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000257 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:53:14 | Added to TrackCVE | |||
| 2022-12-02 22:42:22 | 2017-10-31T21:29Z | 2017-10-31T21:29:00 | CVE Published Date | updated |
| 2022-12-02 22:42:22 | 2018-11-13T11:29:07 | CVE Modified Date | updated | |
| 2022-12-02 22:42:22 | Modified | Vulnerability Status | updated |