CVE-2019-11840
Go golang.org/x/crypto Salsa20 Keystream Reuse and Cycling
Description
An issue was discovered in the supplementary Go cryptography library, golang.org/x/crypto, before v0.0.0-20190320223903-b7391e95e576. A flaw was found in the amd64 implementation of the golang.org/x/crypto/salsa20 and golang.org/x/crypto/salsa20/salsa packages. If more than 256 GiB of keystream is generated, or if the counter otherwise grows greater than 32 bits, the amd64 implementation will first generate incorrect output, and then cycle back to previously generated keystream. Repeated keystream bytes can lead to loss of confidentiality in encryption applications, or to predictability in CSPRNG applications.
INFO
Published Date :
May 9, 2019, 4:29 p.m.
Last Modified :
May 14, 2024, 5:37 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.2
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-2019-11840.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1691529 | Issue Tracking Vendor Advisory |
| https://github.com/golang/go/issues/30965 | Third Party Advisory |
| https://go.googlesource.com/crypto/+/b7391e95e576cacdcdd422573063bc057239113d | Mailing List Patch Third Party Advisory |
| https://groups.google.com/forum/#%21msg/golang-announce/tjyNcJxb2vQ/n0NRBziSCAAJ | |
| https://lists.debian.org/debian-lts-announce/2019/06/msg00029.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/10/msg00014.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/11/msg00016.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/11/msg00030.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/01/msg00015.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/06/msg00017.html | |
| https://pkg.go.dev/vuln/GO-2022-0209 |
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-2019-11840 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-11840 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.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value Changed Description An issue was discovered in supplementary Go cryptography libraries, aka golang-googlecode-go-crypto, before 2019-03-20. A flaw was found in the amd64 implementation of golang.org/x/crypto/salsa20 and golang.org/x/crypto/salsa20/salsa. If more than 256 GiB of keystream is generated, or if the counter otherwise grows greater than 32 bits, the amd64 implementation will first generate incorrect output, and then cycle back to previously generated keystream. Repeated keystream bytes can lead to loss of confidentiality in encryption applications, or to predictability in CSPRNG applications. An issue was discovered in the supplementary Go cryptography library, golang.org/x/crypto, before v0.0.0-20190320223903-b7391e95e576. A flaw was found in the amd64 implementation of the golang.org/x/crypto/salsa20 and golang.org/x/crypto/salsa20/salsa packages. If more than 256 GiB of keystream is generated, or if the counter otherwise grows greater than 32 bits, the amd64 implementation will first generate incorrect output, and then cycle back to previously generated keystream. Repeated keystream bytes can lead to loss of confidentiality in encryption applications, or to predictability in CSPRNG applications. Added Reference MITRE https://pkg.go.dev/vuln/GO-2022-0209 [No types assigned] -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://groups.google.com/forum/#%21msg/golang-announce/tjyNcJxb2vQ/n0NRBziSCAAJ [No types assigned] Removed Reference MITRE https://groups.google.com/forum/#!msg/golang-announce/tjyNcJxb2vQ/n0NRBziSCAAJ -
CVE Modified by [email protected]
Jun. 17, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/06/msg00017.html [No Types Assigned] -
Modified Analysis by [email protected]
Oct. 07, 2022
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/06/msg00029.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/06/msg00029.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/10/msg00014.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/10/msg00014.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/11/msg00016.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/11/msg00016.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/11/msg00030.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/11/msg00030.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/01/msg00015.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/01/msg00015.html Mailing List, Third Party Advisory 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. 18, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/01/msg00015.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 18, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/11/msg00030.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 10, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/11/msg00016.html [No Types Assigned] -
CVE Modified by [email protected]
Oct. 08, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/10/msg00014.html [No Types Assigned] -
CVE Modified by [email protected]
Jun. 30, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/06/msg00029.html [No Types Assigned] -
Initial Analysis by [email protected]
May. 10, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/golang/go/issues/30965 No Types Assigned https://github.com/golang/go/issues/30965 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1691529 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1691529 Issue Tracking, Vendor Advisory Changed Reference Type https://go.googlesource.com/crypto/+/b7391e95e576cacdcdd422573063bc057239113d No Types Assigned https://go.googlesource.com/crypto/+/b7391e95e576cacdcdd422573063bc057239113d Mailing List, Patch, Third Party Advisory Changed Reference Type https://groups.google.com/forum/#!msg/golang-announce/tjyNcJxb2vQ/n0NRBziSCAAJ No Types Assigned https://groups.google.com/forum/#!msg/golang-announce/tjyNcJxb2vQ/n0NRBziSCAAJ Mailing List, Third Party Advisory Added CWE CWE-330 Added CPE Configuration OR *cpe:2.3:a:golang:crypto:*:*:*:*:*:*:*:* versions up to (excluding) 2019-03-20
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-11840 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-2019-11840
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.73 }} -0.06%
score
0.80601
percentile