SB2022093053 - openEuler update for vim

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2022-3234)

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

The vulnerability exists due to a boundary error within the utfc_ptr2len() function at mbyte.c. A remote attacker can trick the victim to open a specially crafted fule, 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.

2) Use-after-free (CVE-ID: CVE-2022-3235)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the getcmdline_int() function in ex_getln.c. A remote attacker can trick the victim to open a specially crafted file, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

3) Use-after-free (CVE-ID: CVE-2022-3256)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the movemark() function in mark.c. A remote attacker can trick the victim to open a specially crafted file, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1975