CVE-2022-23521
gitattributes parsing integer overflow in git
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Git is distributed revision control system. gitattributes are a mechanism to allow defining attributes for paths. These attributes can be defined by adding a `.gitattributes` file to the repository, which contains a set of file patterns and the attributes that should be set for paths matching this pattern. When parsing gitattributes, multiple integer overflows can occur when there is a huge number of path patterns, a huge number of attributes for a single pattern, or when the declared attribute names are huge. These overflows can be triggered via a crafted `.gitattributes` file that may be part of the commit history. Git silently splits lines longer than 2KB when parsing gitattributes from a file, but not when parsing them from the index. Consequentially, the failure mode depends on whether the file exists in the working tree, the index or both. This integer overflow can result in arbitrary heap reads and writes, which may result in remote code execution. The problem has been patched in the versions published on 2023-01-17, going back to v2.30.7. Users are advised to upgrade. There are no known workarounds for this issue.
A flaw was found in Git, a distributed revision control system. When parsing gitattributes, a mechanism to allow defining attributes for paths, multiple integer overflows can occur when there is a huge number of path patterns, attributes for a single pattern, or declared attribute names. These overflows can be triggered via a crafted `.gitattributes` file that may be part of the commit history. Git silently splits lines longer than 2KB when parsing gitattributes from a file, but not when parsing them from the index. Consequentially, the failure mode depends on whether the file exists in the working tree, the index, or both. This integer overflow can result in arbitrary heap reads and writes, which may allow remote code execution.
CVSS Scores
SSVC
- Decision:Attend
Timeline
- 2022-01-19 CVE Reserved
- 2023-01-17 CVE Published
- 2024-09-07 EPSS Updated
- 2024-10-15 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-190: Integer Overflow or Wraparound
CAPEC
References (5)
URL | Tag | Source |
---|---|---|
https://github.com/git/git/security/advisories/GHSA-c738-c5qq-xg89 | Third Party Advisory | |
https://security.gentoo.org/glsa/202312-15 |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76 | 2023-12-27 |
URL | Date | SRC |
---|---|---|
https://access.redhat.com/security/cve/CVE-2022-23521 | 2023-04-10 | |
https://bugzilla.redhat.com/show_bug.cgi?id=2162055 | 2023-04-10 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Git-scm Search vendor "Git-scm" | Git Search vendor "Git-scm" for product "Git" | <= 2.30.6 Search vendor "Git-scm" for product "Git" and version " <= 2.30.6" | - |
Affected
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Git-scm Search vendor "Git-scm" | Git Search vendor "Git-scm" for product "Git" | >= 2.31.0 <= 2.31.5 Search vendor "Git-scm" for product "Git" and version " >= 2.31.0 <= 2.31.5" | - |
Affected
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Git-scm Search vendor "Git-scm" | Git Search vendor "Git-scm" for product "Git" | >= 2.32.0 <= 2.32.4 Search vendor "Git-scm" for product "Git" and version " >= 2.32.0 <= 2.32.4" | - |
Affected
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Git-scm Search vendor "Git-scm" | Git Search vendor "Git-scm" for product "Git" | >= 2.33.0 <= 2.33.5 Search vendor "Git-scm" for product "Git" and version " >= 2.33.0 <= 2.33.5" | - |
Affected
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Git-scm Search vendor "Git-scm" | Git Search vendor "Git-scm" for product "Git" | >= 2.34.0 <= 2.34.5 Search vendor "Git-scm" for product "Git" and version " >= 2.34.0 <= 2.34.5" | - |
Affected
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Git-scm Search vendor "Git-scm" | Git Search vendor "Git-scm" for product "Git" | >= 2.35.0 <= 2.35.5 Search vendor "Git-scm" for product "Git" and version " >= 2.35.0 <= 2.35.5" | - |
Affected
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Git-scm Search vendor "Git-scm" | Git Search vendor "Git-scm" for product "Git" | >= 2.36.0 <= 2.36.3 Search vendor "Git-scm" for product "Git" and version " >= 2.36.0 <= 2.36.3" | - |
Affected
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Git-scm Search vendor "Git-scm" | Git Search vendor "Git-scm" for product "Git" | >= 2.37.0 <= 2.37.4 Search vendor "Git-scm" for product "Git" and version " >= 2.37.0 <= 2.37.4" | - |
Affected
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Git-scm Search vendor "Git-scm" | Git Search vendor "Git-scm" for product "Git" | >= 2.38.0 <= 2.38.2 Search vendor "Git-scm" for product "Git" and version " >= 2.38.0 <= 2.38.2" | - |
Affected
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Git-scm Search vendor "Git-scm" | Git Search vendor "Git-scm" for product "Git" | 2.39.0 Search vendor "Git-scm" for product "Git" and version "2.39.0" | - |
Affected
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