SB2020112523 - Ubuntu update for poppler

Description

This security bulletin contains information about 5 secuirty vulnerabilities.

1) Access of Uninitialized Pointer (CVE-ID: CVE-2020-27778)

The vulnerability allows a remote attacker to crash the application.

The vulnerability exists due to a boundary error when converting PDF files to HTML. A remote attacker can trick the victim to convert a specially crafted file and perform a denial of service (DoS) attack.

2) Integer overflow (CVE-ID: CVE-2018-21009)

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

The vulnerability exists due to integer overflow in Parser::makeStream() function in Parser.cc. A remote attacker can create a specially crafted document, trick the victim into opening it, trigger integer overflow and execute arbitrary code on the target system.

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

3) Out-of-bounds read (CVE-ID: CVE-2019-10871)

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

The vulnerability exists due to heap-based buffer over-read in the function PSOutputDev::checkPageSlice in PSOutputDev.cc. A remote attacker can perform a denial of service attack.

4) Integer overflow (CVE-ID: CVE-2019-9959)

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

The vulnerability exists due to integer overflow in the "JPXStream::init" function, caused by a failure to bounds-check user-supplied data before copying it to an undersized memory buffer. A remote attacker can supply crafted data to the system, trigger integer overflow and cause a denial of service condition on the targeted system.

5) Out-of-bounds read (CVE-ID: CVE-2019-13283)

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

The vulnerability exists due to a boundary error within the FoFiType1::parse() function in fofi/FoFiType1.cc, when processing PDF files. A remote attacker can perform a denial of service attack.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-4646-1