CVE-2022-0443

Use After Free in GitHub repository vim/vim prior to 8.2.

Use After Free in GitHub repository vim/vim prior to 8.2.

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 GitHub repository vim/vim prior to 8.2.(CVE-2022-0261)

Heap-based Buffer Overflow in vim/vim prior to 8.2.(CVE-2022-0318)

Access of Memory Location Before Start of Buffer in GitHub repository vim/vim prior to 8.2.(CVE-2022-0351)

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2.(CVE-2022-0359)

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2.(CVE-2022-0361)

Out-of-bounds Read in GitHub repository vim/vim prior to 8.2.(CVE-2022-0368)

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2.(CVE-2022-0392)

Use After Free in GitHub repository vim/vim prior to 8.2.(CVE-2022-0413)

Stack-based Buffer Overflow in GitHub repository vim/vim prior to 8.2.(CVE-2022-0408)

Use After Free in Conda vim prior to 8.2.(CVE-2022-0443)

Heap-based Buffer Overflow in Conda vim prior to 8.2.(CVE-2022-0417)

vim is vulnerable to Heap-based Buffer Overflow(CVE-2022-0213)

Use After Free in GitHub repository vim/vim prior to 8.2.

• SECURITY UPDATE: Stack corruption when looking for spell suggestions
  • debian/patches/CVE-2022-0408.patch: Prevent the depth increased too much, add a five second time limit to finding suggestions
  • CVE-2022-0408
• SECURITY UPDATE: Using freed memory when substitute with function call
  • debian/patches/CVE-2022-0413.patch: Make a copy of the substituted text
  • CVE-2022-0413
• SECURITY UPDATE: ':retab 0' may cause illegal memory access
  • debian/patches/CVE-2022-0417.patch: Limit the value of 'tabstop' to 10000
  • CVE-2022-0417
• SECURITY UPDATE: Using freed memory with ':lopen' and ':bwipe'
  • debian/patches/CVE-2022-0443.patch: Do not use a wiped out buffer
  • CVE-2022-0443

• CVE-2022-0408: fix stack corruption when looking for spell suggestions
• CVE-2022-0413: fix using freed memory when substitute with function call
• CVE-2022-0417: fix illegal memory access caused by ':retab 0'
• CVE-2022-0443: fix using freed memory with ':lopen' and ':bwipe'

• CVE-2022-0408: fix stack corruption when looking for spell suggestions
• CVE-2022-0413: fix using freed memory when substitute with function call
• CVE-2022-0417: fix illegal memory access caused by ':retab 0'
• CVE-2022-0443: fix using freed memory with ':lopen' and ':bwipe'

• CVE-2021-4069: copy ml_get_curline() in ex_open() so a flushed line buffer is not used after vim_regexec()
• CVE-2022-2000: truncate IObuff with "..." in append_command() when remaining space is below threshold
• CVE-2022-3099: guard do_cmdline() breakpoint lookup with lines_ga.ga_len > current_line check
• CVE-2022-1968: introduce get_line_and_copy() in find_pattern_in_path() so mark-based regex cannot invalidate the line
• CVE-2022-0443: cache buf_valid() in set_curbuf() and fall back to lastbuf when buffer was wiped out
• CVE-2022-1735: add check_visual_pos() and call it after every change/stop_insert so VIsual mark is clamped

• CVE-2021-4069: copy ml_get_curline() in ex_open() so a flushed line buffer is not used after vim_regexec()
• CVE-2022-2000: truncate IObuff with "..." in append_command() when remaining space is below threshold
• CVE-2022-3099: guard do_cmdline() breakpoint lookup with lines_ga.ga_len > current_line check
• CVE-2022-1968: introduce get_line_and_copy() in find_pattern_in_path() so mark-based regex cannot invalidate the line
• CVE-2022-0443: cache buf_valid() in set_curbuf() and fall back to lastbuf when buffer was wiped out
• CVE-2022-1735: add check_visual_pos() and call it after every change/stop_insert so VIsual mark is clamped

vim is vulnerable to out of bounds read (CVE-2022-0213) Heap-based Buffer Overflow in block_insert() in src/ops.c (CVE-2022-0261) a heap-based OOB read of size 1 (CVE-2022-0128) heap-based buffer overflow in utf_head_off() in mbyte.c (CVE-2022-0318) access of memory location before start of buffer (CVE-2022-0351) heap-based buffer overflow in init_ccline() in ex_getln.c (CVE-2022-0359) Stack-based Buffer Overflow in spellsuggest.c (CVE-2022-0408) use after free in src/ex_cmds.c (CVE-2022-0413) out-of-bounds read in delete_buff_tail() in getchar.c (CVE-2022-0393) heap-based-buffer-overflow in ex_retab() of src/indent.c (CVE-2022-0417) heap-use-after-free in enter_buffer() of src/buffer.c (CVE-2022-0443) heap overflow in ex_retab() may lead to crash (CVE-2022-0572) Stack-based Buffer Overflow in vim prior to 8.2. (CVE-2022-0629) NULL Pointer Dereference in vim prior to 8.2 (CVE-2022-0696) buffer overflow (CVE-2022-0714) Use of Out-of-range Pointer Offset (CVE-2022-0729) Use of Out-of-range Pointer Offset in vim (CVE-2022-0685) Use of Out-of-range Pointer Offset in vim (CVE-2022-0554) Heap-based Buffer Overflow occurs in vim (CVE-2022-0943) heap buffer overflow in get_one_sourceline (CVE-2022-1160) use after free in utf_ptr2char (CVE-2022-1154) global heap buffer overflow in skip_range (CVE-2022-1381) Out-of-range Pointer Offset (CVE-2022-1420) heap-buffer-overflow in append_command of src/ex_docmd.c (CVE-2022-1616) heap-buffer-overflow in cmdline_erase_chars of ex_getln.c (CVE-2022-1619) NULL Pointer Dereference in vim_regexec_string() of regexp.c (CVE-2022-1620) heap buffer overflow (CVE-2022-1621) buffer over-read (CVE-2022-1629) NULL pointer dereference in vim_regexec_string() of regexp.c (CVE-2022-1674) a buffer over-read found in scriptfile.c (CVE-2022-1769) Heap-based Buffer Overflow in cindent.c (CVE-2022-1733)

These are all security issues fixed in the gvim-8.2.4286-1.1 package on the GA media of openSUSE Tumbleweed.

It was discovered that Vim was incorrectly handling virtual column position operations, which could result in an out-of-bounds read. An attacker could possibly use this issue to expose sensitive information. (CVE-2021-4193)

It was discovered that Vim was not properly performing bounds checks when updating windows present on a screen, which could result in a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0213)

It was discovered that Vim was incorrectly handling window exchanging operations when in Visual mode, which could result in an out-of-bounds read. An attacker could possibly use this issue to expose sensitive information. (CVE-2022-0319)

It was discovered that Vim was incorrectly handling recursion when parsing conditional expressions. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0351)

It was discovered that Vim was not properly handling memory allocation when processing data in Ex mode, which could result in a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0359)

It was discovered that Vim was not properly performing bounds checks when executing line operations in Visual mode, which could result in a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0361, CVE-2022-0368)

It was discovered that Vim was not properly handling loop conditions when looking for spell suggestions, which could result in a stack buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0408)

It was discovered that Vim was incorrectly handling memory access when executing buffer operations, which could result in the usage of freed memory. An attacker could possibly use this issue to execute arbitrary code. (CVE-2022-0443)

It was discovered that Vim was incorrectly processing Vim buffers. An
attacker could possibly use this issue to perform illegal memory access and expose sensitive information. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-4166)

It was discovered that Vim was using freed memory when dealing with regular expressions inside a visual selection. If a user were tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution with user privileges. This issue only affected Ubuntu 14.04 ESM, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-4192)

It was discovered that Vim was incorrectly handling virtual column position operations, which could result in an out-of-bounds read. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 14.04 ESM, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-4193)

It was discovered that Vim was not properly performing bounds checks when updating windows present on a screen, which could result in a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0213)

It was discovered that Vim was incorrectly performing read and write operations when in visual block mode, going beyond the end of a line and causing a heap buffer overflow. If a user were tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution with user privileges. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-0261, CVE-2022-0318)

It was discovered that Vim was incorrectly handling window exchanging operations when in Visual mode, which could result in an out-of-bounds read. An attacker could possibly use this issue to expose sensitive information. (CVE-2022-0319)

It was discovered that Vim was incorrectly handling recursion when parsing conditional expressions. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0351)

It was discovered that Vim was not properly handling memory allocation when processing data in Ex mode, which could result in a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0359)

It was discovered that Vim was not properly performing bounds checks when executing line operations in Visual mode, which could result in a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-0361, CVE-2022-0368)

It was discovered that Vim was not properly handling loop conditions when looking for spell suggestions, which could result in a stack buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0408)

It was discovered that Vim was incorrectly handling memory access when executing buffer operations, which could result in the usage of freed memory. An attacker could possibly use this issue to execute arbitrary code. (CVE-2022-0443)

It was discovered that Vim was incorrectly processing Vim buffers. An attacker could possibly use this issue to perform illegal memory access and expose sensitive information. (CVE-2022-0554)

It was discovered that Vim was not properly performing bounds checks for column numbers when replacing tabs with spaces or spaces with tabs, which could cause a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0572)

It was discovered that Vim was incorrectly processing Vim buffers. An attacker could possibly use this issue to perform illegal memory access and expose sensitive information. This issue only affected…