CVE-2018-10888 Denial of service in libgit2

What is CVE-2018-10888?

CVE-2018-10888 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 10 Jul 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A flaw was found in libgit2 before version 0.27.3. A missing check in git_delta_apply function in delta.c file, may lead to an out-of-bound read while reading a binary delta file. An attacker may use this flaw to cause a Denial of Service.

Weakness: CWE-125, CWE-20

Which versions are affected by CVE-2018-10888?

It affects 2 products.

Products include Debian Debian Linux, Libgit2 Libgit2.

How do I fix CVE-2018-10888?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2018-10888 being exploited?

There is no known exploitation of CVE-2018-10888 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2018-10888, DEBIAN-CVE-2018-10888, GHSA-mwfj-cw48-q48m, UBUNTU-CVE-2018-10888.