Resource management error in libcroco - CVE-2017-8871

 

Resource management error in libcroco - CVE-2017-8871

Published: July 16, 2019


Vulnerability identifier: #VU19191
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-8871
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop and CPU consumption in the "cr_parser_parse_selector_core" function, as defined in the "src/cr-parser.c" file . A remote attacker can persuade a user to access a file that submits malicious input to the system and cause a DoS condition.


Affected software

libcroco
Isolation Segment
VMware Tanzu Application Service for VMs
libcroco (Alpine package)
libcroco-tools (Ubuntu package)
libcroco3 (Ubuntu package)
Ubuntu
Opensuse
VMware Tanzu Operations Manager

How to mitigate CVE-2017-8871

Install updates from vendor's website.

libcroco - update to 0.6.13
libcroco (Alpine package) - addressed in versions 0.6.12-r1, 0.6.12-r2, 0.6.13-r1
libcroco-tools (Ubuntu package) - addressed in versions Ubuntu Pro, 0.6.13-1ubuntu0.1, 0.6.111ubuntu0.1~esm1
libcroco3 (Ubuntu package) - addressed in versions Ubuntu Pro, 0.6.13-1ubuntu0.1, 0.6.111ubuntu0.1~esm1
VMware Tanzu Operations Manager - addressed in versions 2.9.39, 2.10.40

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins