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Debian dla-3455 : golang-golang-x-crypto-dev - security update

medium Nessus Plugin ID 177400

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-3455 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-3455-1 [email protected] https://www.debian.org/lts/security/ Markus Koschany June 16, 2023 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : golang-go.crypto Version : 1:0.0~git20181203.505ab14-1+deb10u1 CVE ID : CVE-2019-11840 CVE-2019-11841 CVE-2020-9283 Debian Bug : 952462

 Several security vulnerabilities have been discovered in golang-go.crypto, the supplementary Go cryptography libraries.

 CVE-2019-11840

 An issue was discovered in supplementary Go cryptography libraries, aka golang-googlecode-go-crypto. 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.

 CVE-2019-11841

 A message-forgery issue was discovered in crypto/openpgp/clearsign/clearsign.go in supplementary Go cryptography libraries. The Hash Armor Header specifies the message digest algorithm(s) used for the signature. Since the library skips Armor Header parsing in general, an attacker can not only embed arbitrary Armor Headers, but also prepend arbitrary text to cleartext messages without invalidating the signatures.

 CVE-2020-9283

 golang.org/x/crypto allows a panic during signature verification in the golang.org/x/crypto/ssh package. A client can attack an SSH server that accepts public keys. Also, a server can attack any SSH client.

 The following Go packages have been rebuilt in order to fix the aforementioned issues.

 rclone: 1.45-3+deb10u1 obfs4proxy: 0.0.7-4+deb10u1 gobuster: 2.0.1-1+deb10u1 restic: 0.9.4+ds-2+deb10u1 gopass: 1.2.0-2+deb10u1 aptly: 1.3.0+ds1-2.2~deb10u2:
 dnscrypt-proxy: 2.0.19+ds1-2+deb10u1 g10k: 0.5.7-1+deb10u1 hub: 2.7.0~ds1-1+deb10u1 acmetool: 0.0.62-3+deb10u1 syncthing: 1.0.0~ds1-1+deb10u1 packer: 1.3.4+dfsg-4+deb10u1 etcd: 3.2.26+dfsg-3+deb10u1 notary: 0.6.1~ds1-3+deb10u1

 For Debian 10 buster, these problems have been fixed in version 1:0.0~git20181203.505ab14-1+deb10u1.

 We recommend that you upgrade your golang-go.crypto packages.

 For the detailed security status of golang-go.crypto please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/golang-go.crypto

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
 signature.asc Description: This is a digitally signed message part

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the golang-golang-x-crypto-dev packages.

See Also

https://security-tracker.debian.org/tracker/CVE-2019-11840

https://security-tracker.debian.org/tracker/CVE-2019-11841

https://security-tracker.debian.org/tracker/CVE-2020-9283

https://packages.debian.org/source/buster/golang-go.crypto

http://www.nessus.org/u?e94138e5

Plugin Details

Severity: Medium

ID: 177400

File Name: debian_DLA-3455.nasl

Version: 1.4

Type: local

Agent: unix

Published: 6/16/2023

Updated: 1/22/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2019-11841

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:golang-golang-x-crypto-dev

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/16/2023

Vulnerability Publication Date: 5/9/2019

Reference Information

CVE: CVE-2019-11840, CVE-2019-11841, CVE-2020-9283

IAVB: 2023-B-0080-S