SB2021031555 - Ubuntu update for vlc

Description

This security bulletin contains information about 2 vulnerabilities.

1) Heap-out-of-bounds write (CVE-ID: CVE-2017-10699)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code.

The vulnerability exists in VLC Media Player due to calling memcpy() with a wrong size. A remote attacker can create a specially crafted media file, trick the victim into loading it, trigger out-of-bounds heap memory write in the avcodec component and cause the application to crash or execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

2) Use-after-free error (CVE-ID: CVE-2018-11529) Exploited

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to use-after-free error when handling malicious input. A remote unauthenticated attacker can trick the victim into loading a specially crafted MKV file, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-4805-1