In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted "bin" keys. Existing files could be overwritten depending on the current user permission set.

An update of the yarn package has been released.

- Update to 1.21.1

  - Provides /usr/bin/yarn

  - Resolves CVE-2019-10773

  - Rename nodejs-yarn binary package to yarnpkg (similar to     other distros)

  - Use nodejs macros consistently throughout spec

  - Make the tests fail the build if the tests fail

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

- Update to 1.21.1

  - Resolves CVE-2019-10773

  - Rename nodejs-yarn binary package to yarnpkg (similar to     other distros)

  - Use nodejs macros consistently throughout spec

  - Make the tests fail the build if the tests fail

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
133810	Photon OS 3.0: Yarn PHSA-2020-3.0-0057	Nessus	PhotonOS Local Security Checks	high
133576	Fedora 31 : nodejs-yarn (2020-766ce5adae)	Nessus	Fedora Local Security Checks	high
133575	Fedora 30 : nodejs-yarn (2020-7525beefa1)	Nessus	Fedora Local Security Checks	high
132990	Photon OS 2.0: Yarn PHSA-2020-2.0-0200	Nessus	PhotonOS Local Security Checks	high
132986	Photon OS 1.0: Yarn PHSA-2020-1.0-0264	Nessus	PhotonOS Local Security Checks	high

Detections

Analytics

CVE-2019-10773

high

Tenable Plugins

high

high

high

high

high