USN-6948-1: Salt vulnerabilities

Releases

• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• salt - Infrastructure management built on a dynamic communication bus

Details

It was discovered that Salt incorrectly handled crafted web requests.
A remote attacker could possibly use this issue to run arbitrary
commands. (CVE-2020-16846)

It was discovered that Salt incorrectly created certificates with weak
file permissions. (CVE-2020-17490)

It was discovered that Salt incorrectly handled credential validation.
A remote attacker could possibly use this issue to bypass authentication.
(CVE-2020-25592)

It was discovered that Salt incorrectly handled crafted process names.
An attacker could possibly use this issue to run arbitrary commands.
This issue only affected Ubuntu 18.04 LTS. (CVE-2020-28243)

It was discovered that Salt incorrectly handled validation of SSL/TLS
certificates. A remote attacker could possibly use this issue to spoof
a trusted entity. (CVE-2020-28972, CVE-2020-35662)

It was discovered that Salt incorrectly handled credential validation.
A remote attacker could possibly use this issue to run arbitrary code.
(CVE-2021-25281)

It was discovered that Salt incorrectly handled crafted paths. A remote
attacker could possibly use this issue to perform directory traversal.
(CVE-2021-25282)

It was discovered that Salt incorrectly handled template rendering. A
remote attacker could possibly this issue to run arbitrary code.
(CVE-2021-25283)

It was discovered that Salt incorrectly handled logging. An attacker
could possibly use this issue to discover credentials. This issue only
affected Ubuntu 18.04 LTS. (CVE-2021-25284)

It was discovered that Salt incorrectly handled crafted web requests.
A remote attacker could possibly use this issue to run arbitrary
commands. This issue only affected Ubuntu 18.04 LTS. (CVE-2021-3148)

It was discovered that Salt incorrectly handled input sanitization.
A remote attacker could possibly use this issue to run arbitrary
commands. (CVE-2021-3197)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04

• salt-common - 2017.7.4+dfsg1-1ubuntu18.04.2+esm1
  Available with Ubuntu Pro

Ubuntu 16.04

• salt-common - 2015.8.8+ds-1ubuntu0.1+esm2
  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

• CVE-2020-16846
• CVE-2020-25592
• CVE-2020-28972
• CVE-2020-28243
• CVE-2021-25281
• CVE-2021-3148
• CVE-2020-17490
• CVE-2020-35662
• CVE-2021-3197
• CVE-2021-25282
• CVE-2021-25284
• CVE-2021-25283