Red Hat Enterprise Linux 8 update for poppler and evince



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-27778
CWE-ID CWE-824
Exploitation vector Network
Public exploit N/A
Vulnerable software
Red Hat CodeReady Linux Builder for IBM z Systems
Operating systems & Components / Operating system

Red Hat CodeReady Linux Builder for ARM 64
Operating systems & Components / Operating system

Red Hat CodeReady Linux Builder for Power, little endian
Operating systems & Components / Operating system

Red Hat CodeReady Linux Builder for x86_64
Operating systems & Components / Operating system

Red Hat Enterprise Linux for ARM 64
Operating systems & Components / Operating system

Red Hat Enterprise Linux for Power, little endian
Operating systems & Components / Operating system

Red Hat Enterprise Linux for IBM z Systems
Operating systems & Components / Operating system

Red Hat Enterprise Linux for x86_64
Operating systems & Components / Operating system

poppler (Red Hat package)
Operating systems & Components / Operating system package or component

evince (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Access of Uninitialized Pointer

EUVDB-ID: #VU82603

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-27778

CWE-ID: CWE-824 - Access of Uninitialized Pointer

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat CodeReady Linux Builder for IBM z Systems: 8.0

Red Hat CodeReady Linux Builder for ARM 64: 8.0

Red Hat CodeReady Linux Builder for Power, little endian: 8.0

Red Hat CodeReady Linux Builder for x86_64: 8.0

Red Hat Enterprise Linux for ARM 64: 8

Red Hat Enterprise Linux for Power, little endian: 8

Red Hat Enterprise Linux for IBM z Systems: 8

Red Hat Enterprise Linux for x86_64: 8.0

poppler (Red Hat package): before 20.11.0-2.el8

evince (Red Hat package): before 3.28.4-11.el8

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2021:1881


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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