CVE-2018-1000005
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
Description
libcurl 7.49.0 to and including 7.57.0 contains an out bounds read in code handling HTTP/2 trailers. It was reported (https://github.com/curl/curl/pull/2231) that reading an HTTP/2 trailer could mess up future trailers since the stored size was one byte less than required. The problem is that the code that creates HTTP/1-like headers from the HTTP/2 trailer data once appended a string like `:` to the target buffer, while this was recently changed to `: ` (a space was added after the colon) but the following math wasn't updated correspondingly. When accessed, the data is read out of bounds and causes either a crash or that the (too large) data gets passed to client write. This could lead to a denial-of-service situation or an information disclosure if someone has a service that echoes back or uses the trailers for something.
Overview
- CVE ID
- CVE-2018-1000005
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2018-01-24T22:29:00
- Last Modified Date
- 2019-06-18T22:15:11
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:* | 1 | OR | 7.49.0 | 7.57.0 |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* | 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://github.com/curl/curl/pull/2231 | Issue Tracking Patch Third Party Advisory |
| https://curl.haxx.se/docs/adv_2018-824a.html | Patch Vendor Advisory |
| http://www.securitytracker.com/id/1040273 | Third Party Advisory VDB Entry |
| https://www.debian.org/security/2018/dsa-4098 | Third Party Advisory |
| https://usn.ubuntu.com/3554-1/ | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2019:1543 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-1000005 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000005 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:50:01 | Added to TrackCVE | |||
| 2022-12-03 01:28:23 | 2018-01-24T22:29Z | 2018-01-24T22:29:00 | CVE Published Date | updated |
| 2022-12-03 01:28:23 | 2019-06-18T22:15:11 | CVE Modified Date | updated | |
| 2022-12-03 01:28:23 | Modified | Vulnerability Status | updated |