CVE-2022-3591

Vim is an advanced text editor that seeks to provide the power of the de-facto Unix editor 'Vi', with a more complete feature set. Vim is a highly configurable text editor built to enable efficient text editing.It is an improved version of the vi editor distributed with most UNIX systems.

Security Fix(es):

Heap based buffer overflow in vim/vim 9.0.0946 and below by allowing an attacker to CTRL-W gf in the expression used in the RHS of the substitute command.(CVE-2022-4141)

Use After Free in GitHub repository vim/vim prior to 9.0.0789.(CVE-2022-3591)

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0765.(CVE-2022-3520)

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0742.(CVE-2022-3491)

Use After Free in GitHub repository vim/vim prior to 9.0.0789.

• CVE-2022-3591: disallow navigating to a dummy buffer

• SECURITY UPDATE: Dummy buffer ends up in a window
  • debian/patches/CVE-2022-3591.patch: Disallow navigating to a dummy buffer
  • CVE-2022-3591

• CVE-2022-3591: disallow navigating to a dummy buffer

• CVE-2021-3903: do not set VALID_BOTLINE in w_valid when the screen is not valid, preventing invalid memory access while scrolling.
• CVE-2021-4069: copy the current line before regexec in ex_open() so the match is not using freed memory when searching for a mark flushes it.
• CVE-2022-0351: limit eval7() recursion to 1000 levels to prevent a stack overflow from many nested "(" in an expression.
• CVE-2022-2129: disallow switching buffers in a substitute expression by extending the do_exedit() lock check to cover textlock as well.
• CVE-2022-2183: avoid reading past the NUL terminator in get_lisp_indent().
• CVE-2022-2287: reject words containing control characters or a trailing slash before adding them to the internal spell word list.
• CVE-2022-3234: guard PBYTE against the cursor landing past the NUL in op_replace() with virtualedit, and skip the virtualedit coladd branch when a replacement has already happened.
• CVE-2022-3520: clamp b_op_end.col to zero in do_put() to prevent a negative column with Visual block put.
• CVE-2022-3591: disallow navigating to a dummy buffer in do_buffer() to prevent use-after-free.

• CVE-2021-3903: do not set VALID_BOTLINE in w_valid when the screen is not valid, preventing invalid memory access while scrolling.
• CVE-2021-4069: copy the current line before regexec in ex_open() so the match is not using freed memory when searching for a mark flushes it.
• CVE-2022-0351: limit eval7() recursion to 1000 levels to prevent a stack overflow from many nested "(" in an expression.
• CVE-2022-2129: disallow switching buffers in a substitute expression by extending the do_exedit() lock check to cover textlock as well.
• CVE-2022-2183: avoid reading past the NUL terminator in get_lisp_indent().
• CVE-2022-2287: reject words containing control characters or a trailing slash before adding them to the internal spell word list.
• CVE-2022-3234: guard PBYTE against the cursor landing past the NUL in op_replace() with virtualedit, and skip the virtualedit coladd branch when a replacement has already happened.
• CVE-2022-3520: clamp b_op_end.col to zero in do_put() to prevent a negative column with Visual block put.
• CVE-2022-3591: disallow navigating to a dummy buffer in do_buffer() to prevent use-after-free.

This update for vim fixes the following issues:

Updated to version 9.0.1040:

• CVE-2022-3491: vim: Heap-based Buffer Overflow prior to 9.0.0742 (bsc#1206028).
• CVE-2022-3520: vim: Heap-based Buffer Overflow (bsc#1206071).
• CVE-2022-3591: vim: Use After Free (bsc#1206072).
• CVE-2022-4292: vim: Use After Free in GitHub repository vim/vim prior to 9.0.0882 (bsc#1206075).
• CVE-2022-4293: vim: Floating Point Comparison with Incorrect Operator in GitHub repository vim/vim prior to 9.0.0804 (bsc#1206077).
• CVE-2022-4141: vim: heap-buffer-overflow in alloc.c 246:11 (bsc#1205797).
• CVE-2022-3705: vim: use after free in function qf_update_buffer of the file quickfix.c (bsc#1204779).

This update for vim fixes the following issues:

• Updated to version 9.0.1234:
  • CVE-2023-0433: Fixed an out of bounds memory access that could cause a crash (bsc#1207396).
  • CVE-2023-0288: Fixed an out of bounds memory access that could cause a crash (bsc#1207162).
  • CVE-2023-0054: Fixed an out of bounds memory write that could cause a crash or memory corruption (bsc#1206868).
  • CVE-2023-0051: Fixed an out of bounds memory access that could cause a crash (bsc#1206867).
  • CVE-2023-0049: Fixed an out of bounds memory access that could cause a crash (bsc#1206866).
  • CVE-2022-3491: Fixed an out of bounds memory access that could cause a crash (bsc#1206028).
  • CVE-2022-3520: Fixed an out of bounds memory access that could cause a crash (bsc#1206071).
  • CVE-2022-3591: Fixed a use-after-free issue that could cause memory corruption or undefined behavior (bsc#1206072).
  • CVE-2022-4292: Fixed a use-after-free issue that could cause memory corruption or undefined behavior (bsc#1206075).
  • CVE-2022-4293: Fixed a floating point exception that could cause a crash (bsc#1206077).
  • CVE-2022-4141: Fixed an out of bounds memory write that could cause a crash or memory corruption (bsc#1205797).
  • CVE-2022-3705: Fixed an use-after-free issue that could cause a crash or memory corruption (bsc#1204779).

It was discovered that Vim uses freed memory in recurisve substitution of specially crafted patterns. An attacker could possbly use this to crash Vim and cause denial of service. (CVE-2022-2345)

It was discovered that Vim makes illegal memory calls when patterns start with an illegal byte. An attacker could possibly use this to crash Vim, access or modify memory, or execute arbitrary commands. (CVE-2022-2581)

It was discovered that Vim could be made to crash when parsing invalid line numbers. An attacker could possbly use this to crash Vim and cause denial of service. (CVE-2022-3099)

It was discovered that Vim uses freed memory when autocmd changes a mark. An attacker could possbly use this to crash Vim and cause denial of service. (CVE-2022-3256)

It was discovered the Vim uses an incorrect array index when window width is negative. A local attacker could possbly use this to crash Vim and cause denial of service. (CVE-2022-3324)

It was discoverd that certain buffers could be sent to the wrong window. An attacker with local access could use this to send messages to the wrong window. (CVE-2022-3591)

It was discovered that Vim incorrectly handled memory when opening certain files. If an attacker could trick a user into opening a specially crafted file, it could cause Vim to crash, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-3235, CVE-2022-3278, CVE-2022-3297, CVE-2022-3491)

It was discovered that Vim incorrectly handled memory when opening certain files. If an attacker could trick a user into opening a specially crafted file, it could cause Vim to crash, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-3352, CVE-2022-4292)

It was discovered that Vim incorrectly handled memory when replacing in virtualedit mode. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-3234)

It was discovered that Vim incorrectly handled memory when autocmd changes mark. An attacker could possibly use this issue to cause a denial of service. (CVE-2022-3256)

It was discovered that Vim did not properly perform checks on array index with negative width window. An attacker could possibly use this issue to cause a denial of service, or execute arbitrary code. (CVE-2022-3324)

It was discovered that Vim did not properly perform checks on a put command column with a visual block. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-3520)

It was discovered that Vim incorrectly handled memory when using autocommand to open a window. An attacker could possibly use this issue to cause a denial of service. (CVE-2022-3591)

It was discovered that Vim incorrectly handled memory when updating buffer of the component autocmd handler. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-3705)

It was discovered that Vim incorrectly handled floating point comparison with incorrect operator. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. and Ubuntu 22.04 LTS. (CVE-2022-4293)