Fedora 34 update for mupdf, python-PyMuPDF, zathura-pdf-mupdf



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-37220
CWE-ID CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

zathura-pdf-mupdf
Operating systems & Components / Operating system package or component

python-PyMuPDF
Operating systems & Components / Operating system package or component

mupdf
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU55403

Risk: High

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-37220

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the cached color converter. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 34

zathura-pdf-mupdf: before 0.3.7-2.fc34

python-PyMuPDF: before 1.19.1-1.fc34

mupdf: before 1.19.0-2.fc34

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2021-e1d8a99caa


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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