#VU55487 Out-of-bounds write in DjVuLibre - CVE-2021-3630
Published: August 2, 2021
Vulnerability identifier: #VU55487
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-3630
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
DjVuLibre
DjVuLibre
Software vendor:
DjVu
DjVu
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.
Remediation
Install updates from vendor's website.
External links
- https://bugzilla.redhat.com/show_bug.cgi?id=1977427
- https://lists.debian.org/debian-lts-announce/2021/07/msg00002.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Q3B4QZCICPZRDXA2HOIACSQNZB2VEHSM/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XVKYWV4P5XGA3FXKGFB443MKC32L7YQB/