SB2023091570 - openEuler update for vim

Description

This security bulletin contains information about 8 vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2023-4733)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to crash the application.

The vulnerability exists due to a use-after-free error within the do_ecmd() function in ex_cmds.c. A remote attacker can trick the victim to open a specially crafted file and crash the application.

2) Integer overflow (CVE-ID: CVE-2023-4734)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 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

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

The vulnerability exists due to integer overflow within the f_fullcommand() function in ex_docmd.c. A remote attacker can trick the victim to open a specially crafted file, trigger integer overflow and execute arbitrary code on the target system.

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

3) Out-of-bounds read (CVE-ID: CVE-2023-4735)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the do_addsub() function in ops.c. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory on the system.

4) Untrusted search path (CVE-ID: CVE-2023-4736)

CWE-ID: CWE-426 - Untrusted Search Path

CVSSv4: 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

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to usage of an untrusted search path when searching for perl, zig, ruby filetype plugins as well as zip and gzip autoload plugins. A remote attacker can trick the victim into downloading specially crafted files and opening one of the downloaded files using the affected software.

Successful exploitation of the vulnerability may lead to remote code execution.

5) Buffer overflow (CVE-ID: CVE-2023-4738)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to crash the application.

The vulnerability exists due to a boundary error within the vim_regsub_both() function in src/regexp.c. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and crash the application.

6) Use-after-free (CVE-ID: CVE-2023-4750)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to crash the application.

The vulnerability exists due to a use-after-free error within the is_qf_win() function in quickfix.c. A remote attacker can trick the victim to open a specially crafted file and crash the application.

7) Use-after-free (CVE-ID: CVE-2023-4752)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to crash the application.

The vulnerability exists due to a use-after-free error within the ins_compl_get_exp() function in insexpand.c. A remote attacker can trick the victim to open a specially crafted file and crash the application.

8) Heap-based buffer overflow (CVE-ID: CVE-2023-4781)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to crash the application.

The vulnerability exists due to a boundary error within the vim_regsub_both() function. A remote attacker can trick the victim to open a specially crafted file, trigger a heap-based buffer overflow and crash the application.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1653