CVE-2018-1000005
libcurl Out-of-Bounds Read Denial-of-Service/Information Disclosure
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.
INFO
Published Date :
Jan. 24, 2018, 10:29 p.m.
Last Modified :
June 18, 2019, 10:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2018-1000005
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-1000005.
| URL | Resource |
|---|---|
| http://www.securitytracker.com/id/1040273 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2019:1543 | |
| https://curl.haxx.se/docs/adv_2018-824a.html | Patch Vendor Advisory |
| https://github.com/curl/curl/pull/2231 | Issue Tracking Patch Third Party Advisory |
| https://usn.ubuntu.com/3554-1/ | Third Party Advisory |
| https://www.debian.org/security/2018/dsa-4098 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-1000005 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-1000005 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jun. 18, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:1543 [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 25, 2019
Action Type Old Value New Value Changed Reference Type https://usn.ubuntu.com/3554-1/ No Types Assigned https://usn.ubuntu.com/3554-1/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 21, 2018
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3554-1/ [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 09, 2018
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Changed Reference Type https://www.debian.org/security/2018/dsa-4098 No Types Assigned https://www.debian.org/security/2018/dsa-4098 Third Party Advisory Changed Reference Type http://www.securitytracker.com/id/1040273 No Types Assigned http://www.securitytracker.com/id/1040273 Third Party Advisory, VDB Entry Changed Reference Type https://github.com/curl/curl/pull/2231 No Types Assigned https://github.com/curl/curl/pull/2231 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://curl.haxx.se/docs/adv_2018-824a.html No Types Assigned https://curl.haxx.se/docs/adv_2018-824a.html Patch, Vendor Advisory Added CWE CWE-125 Added CPE Configuration OR *cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:* versions from (including) 7.49.0 up to (including) 7.57.0 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 28, 2018
Action Type Old Value New Value Added Reference https://www.debian.org/security/2018/dsa-4098 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 26, 2018
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1040273 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-1000005 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-1000005
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.65 }} -0.01%
score
0.77220
percentile