openEuler update for vim

1) Out-of-bounds write

EUVDB-ID: #VU63062

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-2021-3770

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can trick the victim to open a specially crafted file, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

vim-filesystem: before 8.2-2

vim-minimal: before 8.2-2

vim-debugsource: before 8.2-2

vim-X11: before 8.2-2

vim-enhanced: before 8.2-2

vim-debuginfo: before 8.2-2

vim-common: before 8.2-2

vim: before 8.2-2

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1344

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.