#VU29282 Out-of-bounds read in hunspell - CVE-2019-16707
Published: June 25, 2020 / Updated: August 23, 2022
Vulnerability identifier: #VU29282
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-16707
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
hunspell
hunspell
Software vendor:
hunspell
hunspell
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the SuggestMgr::leftcommonsubstring() function in suggestmgr.cxx. A remote attacker can trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://github.com/butterflyhack/hunspell-crash
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/24NTBHK2QNYKSBMJI34WEU5MHS3H2FAI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2YOYFI36IWKABNGFTWXCH7TTGAFODH6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LNTSVWI4SWBQL6XMXNGEH7EAQ45WN63G/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UD4AJ4M74VT3I6L37E4P5DNYZYBZIOVM/
- https://github.com/hunspell/hunspell/releases/tag/v1.7.1