CVE-2023-23762 – Incorrect comparison vulnerability in GitHub Enterprise Server leading to commit smuggling
https://notcve.org/view.php?id=CVE-2023-23762
An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff. To do so, an attacker would need write access to the repository and be able to correctly guess the target branch before it’s created by the code maintainer. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program. • https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18 https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15 https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11 https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8 https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1 • CWE-697: Incorrect Comparison •
CVE-2023-23761 – Improper authentication vulnerability in GitHub Enterprise Server leading to modification of secret gists
https://notcve.org/view.php?id=CVE-2023-23761
An improper authentication vulnerability was identified in GitHub Enterprise Server that allowed an unauthorized actor to modify other users' secret gists by authenticating through an SSH certificate authority. To do so, a user had to know the secret gist's URL. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program. • https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18 https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15 https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11 https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8 https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1 • CWE-287: Improper Authentication •
CVE-2023-24824 – Quadratic complexity may lead to a denial of service in cmark-gfm
https://notcve.org/view.php?id=CVE-2023-24824
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. A polynomial time complexity issue in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. This CVE covers quadratic complexity issues when parsing text which leads with either large numbers of `>` or `-` characters. This issue has been addressed in version 0.29.0.gfm.10. Users are advised to upgrade. • https://github.com/github/cmark-gfm/commit/2300c1bd2c8226108885bf019655c4159cf26b59 https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh • CWE-400: Uncontrolled Resource Consumption CWE-407: Inefficient Algorithmic Complexity •
CVE-2023-26485 – Quadratic complexity may lead to a denial of service in cmark-gfm
https://notcve.org/view.php?id=CVE-2023-26485
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. A polynomial time complexity issue in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. This CVE covers quadratic complexity issues when parsing text which leads with either large numbers of `_` characters. This issue has been addressed in version 0.29.0.gfm.10. Users are advised to upgrade. • https://github.com/github/cmark-gfm/commit/07a66c9bc341f902878e37d7da8647d6ef150987 https://github.com/github/cmark-gfm/security/advisories/GHSA-r8vr-c48j-fcc5 • CWE-400: Uncontrolled Resource Consumption CWE-407: Inefficient Algorithmic Complexity •
CVE-2023-27581 – github-slug-action vulnerable to arbitrary code execution
https://notcve.org/view.php?id=CVE-2023-27581
github-slug-action is a GitHub Action to expose slug value of GitHub environment variables inside of one's GitHub workflow. Starting in version 4.0.0` and prior to version 4.4.1, this action uses the `github.head_ref` parameter in an insecure way. This vulnerability can be triggered by any user on GitHub on any workflow using the action on pull requests. They just need to create a pull request with a branch name, which can contain the attack payload. This can be used to execute code on the GitHub runners and to exfiltrate any secrets one uses in the CI pipeline. • https://github.com/rlespinasse/github-slug-action/commit/102b1a064a9b145e56556e22b18b19c624538d94 https://github.com/rlespinasse/github-slug-action/releases/tag/v4.4.1 https://github.com/rlespinasse/github-slug-action/security/advisories/GHSA-6q4m-7476-932w https://securitylab.github.com/research/github-actions-untrusted-input • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') •