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cveGitHub_MCVE-2023-22485
HistoryJan 24, 2023 - 1:15 a.m.

CVE-2023-22485

2023-01-2401:15:10
CWE-91
CWE-125
GitHub_M
web.nvd.nist.gov
37
github
cmark-gfm
commonmark
parsing
rendering
library
c
vulnerability
out-of-bounds read
nvd
cve-2023-22485

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

AI Score

5.4

Confidence

High

EPSS

0.001

Percentile

39.9%

cmark-gfm is GitHub’s fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior 0.29.0.gfm.7, a crafted markdown document can trigger an out-of-bounds read in the validate_protocol function. We believe this bug is harmless in practice, because the out-of-bounds read accesses malloc metadata without causing any visible damage.This vulnerability has been patched in 0.29.0.gfm.7.

Affected configurations

Nvd
Vulners
Node
githubcmark-gfmRange<0.29.0.gfm.7
VendorProductVersionCPE
githubcmark-gfm*cpe:2.3:a:github:cmark-gfm:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "vendor": "github",
    "product": "cmark-gfm",
    "versions": [
      {
        "version": "< 0.29.0.gfm.7",
        "status": "affected"
      }
    ]
  }
]

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

AI Score

5.4

Confidence

High

EPSS

0.001

Percentile

39.9%