CVE-2021-29934: An issue was discovered in PartialReader in the uu_od crate before 0.0.4 for Rust

Q: How do I fix CVE-2021-29934?

uu od: upgrade to 0.0.4. Exact commands for each OS are on this page.

Q: Is CVE-2021-29934 being exploited?

CVE-2021-29934 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-2021-29934 affect?

CVE-2021-29934 affects uu od. Severity is high (CVSS 7.3). An issue was discovered in PartialReader in the uu_od crate before 0.0.4 for Rust. Attackers can read the contents of uninitialized memory locations via a user-provided Read operation.

Q: How urgent is CVE-2021-29934?

Priority 51/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.3REMOTEUPGRADE

CVE-2021-29934 is a high-severity flaw (CVSS 7.3) affecting uu od. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in PartialReader in the uu_od crate before 0.0.4 for Rust. Attackers can read the contents of uninitialized memory locations via a user-provided Read operation.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-125, CWE-908
Published	2021-04-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: uu od project

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

Am I affected?

Timeline

2021-04-01 05:15 UTCPublished CVE record published
2026-06-17 03:48 UTCUpdated Record last modified

uu od project uu od UPGRADE

Affected: < 0.0.4

Fixed in: 0.0.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy uu-od || rpm -q uu-od || uu-od --version

2. UPGRADE to 0.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade uu-od

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade uu-od

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-2021-29934?

uu od: upgrade to 0.0.4. Exact commands for each OS are on this page.

Is CVE-2021-29934 being exploited?

CVE-2021-29934 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-2021-29934 affect?

CVE-2021-29934 affects uu od. Severity is high (CVSS 7.3). An issue was discovered in PartialReader in the uu_od crate before 0.0.4 for Rust. Attackers can read the contents of uninitialized memory locations via a user-provided Read operation.

How urgent is CVE-2021-29934?

Priority 51/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

← Back to latest CVEs