SB2023033060 - Ubuntu update for xcftools

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Integer overflow (CVE-ID: CVE-2019-5086)

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

The vulnerability exists due to integer overflow in the "flattenIncrementally" function in the "xcf2png" and "xcf2pnm" binaries. A remote attacker can trick a victim to open a specially crafted XCF file, trigger integer overflow and execute arbitrary code on the target system.

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

Note: An integer overflow can occur while walking through tiles.

2) Integer overflow (CVE-ID: CVE-2019-5087)

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

The vulnerability exists due to integer overflow in the "flattenIncrementally" function in the "xcf2png" and "xcf2pnm" binaries. A remote attacker can trick a victim to open a specially crafted XCF file, trigger integer overflow and execute arbitrary code on the target system.

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

Note: An integer overflow can occur while calculating the row's allocation size.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-5988-1