Out-of-bounds write in LibRaw - CVE-2020-35530
Published: November 11, 2022
Vulnerability identifier: #VU69256
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-35530
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input within the new_node() function in librawsrcx3fx3f_utils_patched.cpp. A remote attacker can create a specially crafted X3F file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.
Affected software
LibRaw
Ubuntu
libraw16 (Ubuntu package)
libraw19 (Ubuntu package)
Ubuntu
libraw16 (Ubuntu package)
libraw19 (Ubuntu package)
How to mitigate CVE-2020-35530
Install updates from vendor's website.
LibRaw - update to 0.20.0
libraw16 (Ubuntu package) - update to 0.18.8-1ubuntu0.4
libraw19 (Ubuntu package) - update to 0.19.5-1ubuntu1.1
libraw16 (Ubuntu package) - update to 0.18.8-1ubuntu0.4
libraw19 (Ubuntu package) - update to 0.19.5-1ubuntu1.1