- Vulnerability/
- CVE-2024-12084
CVE-2024-12084: Rsync: heap buffer overflow in rsync due to improper checksum length handling
First published: Thu Dec 05 2024(Updated: )
A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/rsync | <=3.2.7-1 | 3.2.3-4+deb11u1 3.2.3-4+deb11u3 3.2.7-1+deb12u2 3.3.0+ds1-4 |
| F5 BIG-IP and BIG-IQ Centralized Management |
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Reference Links
- https://www.bleepingcomputer.com/news/security/over-660-000-rsync-servers-exposed-to-code-execution-attacks/
- https://git.samba.org/?p=rsync.git;a=commit;h=0902b52f6687b1f7952422080d50b93108742e53
- https://git.samba.org/?p=rsync.git;a=commit;h=42e2b56c4ede3ab164f9a5c6dae02aa84606a6c1
- https://www.openwall.com/lists/oss-security/2025/01/14/3
- https://security-tracker.debian.org/tracker/CVE-2024-12084
- https://www.bleepingcomputer.com/news/security/qnap-fixes-six-rsync-vulnerabilities-in-hbs-nas-backup-recovery-app/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-12084
- https://nvd.nist.gov/vuln/detail/CVE-2024-12084
- https://launchpad.net/bugs/cve/CVE-2024-12084
- https://ubuntu.com/security/CVE-2024-12084
- https://access.redhat.com/security/cve/CVE-2024-12084
- https://bugzilla.redhat.com/show_bug.cgi?id=2330527
- https://kb.cert.org/vuls/id/952657
- http://www.openwall.com/lists/oss-security/2025/01/14/6
- https://github.com/google/security-research/security/advisories/GHSA-p5pg-x43v-mvqj
- https://my.f5.com/manage/s/article/K000150363
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2024-12084?
CVE-2024-12084 is classified as a high-severity vulnerability due to its potential for exploitation and impact on system integrity.
How do I fix CVE-2024-12084?
To fix CVE-2024-12084, upgrade to the patched versions of rsync, which include 3.2.3-4+deb11u1, 3.2.3-4+deb11u3, 3.2.7-1+deb12u2, or 3.3.0+ds1-4.
What are the consequences of exploiting CVE-2024-12084?
Exploitation of CVE-2024-12084 can lead to a heap-based buffer overflow, resulting in arbitrary code execution on the affected system.
Which versions of rsync are affected by CVE-2024-12084?
CVE-2024-12084 affects rsync versions up to and including 3.2.7-1.
Is CVE-2024-12084 specific to any operating system?
CVE-2024-12084 primarily affects the rsync daemon used in Debian-based systems.
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