SUSE update for djvulibre

1) Out-of-bounds write

EUVDB-ID: #VU55487

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3630

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 within the DJVU::DjVuTXT::decode() function in DjVuText.cpp. A remote attacker can create a specially crafted djvu file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package djvulibre to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Point of Sale: 11-SP3

SUSE Linux Enterprise Debuginfo: 11-SP3 - 11-SP4

SUSE Linux Enterprise Server: 11-SP4-LTSS

djvulibre-debugsource: before 3.5.21-3.15.1

djvulibre-debuginfo: before 3.5.21-3.15.1

libdjvulibre21: before 3.5.21-3.15.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-202114761-1/

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.