CVE-2016-8568: The git_commit_message function in oid.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of

Q: How do I fix CVE-2016-8568?

fedora: mitigate or apply the listed mitigation; leap: mitigate or apply the listed mitigation; opensuse: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2016-8568 being exploited?

CVE-2016-8568 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2016-8568 affect?

CVE-2016-8568 affects fedora, leap, opensuse. Severity is medium (CVSS 5.5). The git_commit_message function in oid.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service (out-of-bounds read) via a cat-file command with a crafted object file.

Q: How urgent is CVE-2016-8568?

Priority 44/100. On your watchlist

This month

MEDIUM 5.5WATCHLISTMITIGATEMITIGATEMITIGATE

CVE-2016-8568 is a medium-severity flaw (CVSS 5.5) affecting fedora, leap, opensuse. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The git_commit_message function in oid.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service (out-of-bounds read) via a cat-file command with a crafted object file.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-125
Published	2017-02-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fedoraproject · libgit2 project · opensuse · suse

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-02-03 15:59 UTCPublished CVE record published
2026-06-17 00:54 UTCUpdated Record last modified

fedoraproject fedora MITIGATE

Affected: 23 · 24 · 25

Fixed in: no fixed release known

Safe to downgrade to: a release before 23

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

opensuse leap MITIGATE

Affected: 42.1 · 42.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 42.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

opensuse opensuse MITIGATE

Affected: 13.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 13.2

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

suse linux enterprise MITIGATE

Affected: 12.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

libgit2 project libgit2 UPGRADE

Affected: <= 0.24.2

Fixed in: newer than 0.24.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy libgit2 || rpm -q libgit2 || libgit2 --version

2. UPGRADE to newer than 0.24.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade libgit2

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libgit2

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2016-8568?

fedora: mitigate or apply the listed mitigation; leap: mitigate or apply the listed mitigation; opensuse: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-8568 being exploited?

CVE-2016-8568 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2016-8568 affect?

CVE-2016-8568 affects fedora, leap, opensuse. Severity is medium (CVSS 5.5). The git_commit_message function in oid.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service (out-of-bounds read) via a cat-file command with a crafted object file.

How urgent is CVE-2016-8568?

Priority 44/100. On your watchlist

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References

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