USN-5389-1: Libcroco vulnerabilities
24081
25 July 2022
25 July 2022
CLOSED
LOW
CVE-2017-7960,CVE-2017-8834,CVE-2017-8871,CVE-2020-12825
Severity
low
Vendor
VMware Tanzu
Versions Affected
- Canonical Ubuntu 16.04
Description
It was discovered that Libcroco was incorrectly accessing data structures when reading bytes from memory, which could cause a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-7960) It was discovered that Libcroco was incorrectly handling invalid UTF-8 values when processing CSS files. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-8834, CVE-2017-8871) It was discovered that Libcroco was incorrectly implementing recursion in one of its parsing functions, which could cause an infinite recursion loop and a stack overflow due to stack consumption. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-12825) Update Instructions: Run `sudo ua fix USN-5389-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libcroco-tools - 0.6.11-1ubuntu0.1~esm1 libcroco3 - 0.6.11-1ubuntu0.1~esm1 libcroco3-dev - 0.6.11-1ubuntu0.1~esm1 Available with UA Infra or UA Desktop: https://ubuntu.com/advantage
CVEs contained in this USN include: CVE-2017-7960, CVE-2017-8834, CVE-2017-8871, CVE-2020-12825
Affected VMware Products and Versions
Severity is low unless otherwise noted.
- Isolation Segment
- 2.7.x versions with Xenial Stemcells prior to 456.265
- 2.8.x versions with Xenial Stemcells prior to 621.241
- 2.9.x versions with Xenial Stemcells prior to 621.241
- 2.10.x versions with Xenial Stemcells prior to 621.241
- 2.11.x versions with Xenial Stemcells prior to 621.241
- 2.12.x versions with Xenial Stemcells prior to 621.241
- Operations Manager
- 2.9.x versions prior to 2.9.39
- 2.10.x versions prior to 2.10.40
- VMware Tanzu Application Service for VMs
- 2.7.x versions with Xenial Stemcells prior to 456.265
- 2.8.x versions with Xenial Stemcells prior to 621.241
- 2.9.x versions with Xenial Stemcells prior to 621.241
- 2.10.x versions with Xenial Stemcells prior to 621.241
- 2.11.x versions with Xenial Stemcells prior to 621.241
- 2.12.x versions with Xenial Stemcells prior to 621.241
Mitigation
Users of affected products are strongly encouraged to follow the mitigation below. On the Tanzu Network product page for each release, check the Depends On section and/or Release Notes for this information. Releases that have fixed this issue include:- Isolation Segment
- 2.7.x: Upgrade Xenial Stemcells to 456.265 or greater
- 2.8.x: Upgrade Xenial Stemcells to 621.241 or greater
- 2.9.x: Upgrade Xenial Stemcells to 621.241 or greater
- 2.10.x: Upgrade Xenial Stemcells to 621.241 or greater
- 2.11.x: Upgrade Xenial Stemcells to 621.241 or greater
- 2.12.x: Upgrade Xenial Stemcells to 621.241 or greater
- Operations Manager
- 2.9.39
- 2.10.40
- VMware Tanzu Application Service for VMs
- 2.7.x: Upgrade Xenial Stemcells to 456.265 or greater
- 2.8.x: Upgrade Xenial Stemcells to 621.241 or greater
- 2.9.x: Upgrade Xenial Stemcells to 621.241 or greater
- 2.10.x: Upgrade Xenial Stemcells to 621.241 or greater
- 2.11.x: Upgrade Xenial Stemcells to 621.241 or greater
- 2.12.x: Upgrade Xenial Stemcells to 621.241 or greater
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7960
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8834
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8871
- https://ubuntu.com/security/CVE-2020-12825
- https://ubuntu.com/security/notices/USN-5389-1
- https://cloudfoundry.org/blog/usn-5389-1
History
2022-07-25: Initial vulnerability report published.