rsync: sanitization bypass in parse_argument in options.c
Published Jan 17, 2018
7.5
HIGHCVSS 3.1
EPSS 6.39%
Description
The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple --protect-args uses, which allows remote attackers to bypass an argument-sanitization protection mechanism.
Affected products
No data.
Configuration 2
- 7.0
- 8.0
- 9.0
Configuration 3
- 14.04
- 16.04
- 17.10
No data.
Red Hat Enterprise Linux 5
rsync
Will not fix
Red Hat Enterprise Linux 6
rsync
Will not fix
Red Hat Enterprise Linux 7
rsync
Will not fix
Red Hat Enterprise Linux 8
rsync
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | rsync | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | rsync | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | rsync | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | rsync | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the versions of rsync as shipped with Red Hat Enterprise Linux 7 and Red Hat Enterprise Linux 6. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
AV:N/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (30 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.39% (0.06389) | 93.46th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.38% (0.06379) | 92.75th | v5 (v2026.06.15) |
| Jun 1, 2026 | 13.13% (0.13133) | 94.24th | v4 (v2025.03.14) |
| Apr 2, 2026 | 10.07% (0.10069) | 93.06th | v4 (v2025.03.14) |
| Mar 22, 2026 | 7.67% (0.07674) | 91.82th | v4 (v2025.03.14) |
| Feb 6, 2026 | 9.76% (0.09757) | 92.75th | v4 (v2025.03.14) |
| Dec 18, 2025 | 7.69% (0.07690) | 91.60th | v4 (v2025.03.14) |
| Nov 21, 2025 | 2.43% (0.02425) | 84.62th | v4 (v2025.03.14) |
| Nov 18, 2025 | 15.82% (0.15821) | 94.18th | v4 (v2025.03.14) |
| Sep 2, 2025 | 2.25% (0.02250) | 84.02th | v4 (v2025.03.14) |
| Mar 30, 2025 | 7.71% (0.07709) | 91.10th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.55% (0.05554) | 83.39th | v4 (v2025.03.14) |
| Mar 17, 2025 | 7.71% (0.07709) | 91.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.54% (0.00537) | 77.98th | v3 (v2023.03.01) |
| Apr 22, 2024 | 0.54% (0.00537) | 76.97th | v3 (v2023.03.01) |
| Mar 14, 2024 | 1.06% (0.01062) | 83.79th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.95% (0.00945) | 81.33th | v3 (v2023.03.01) |
| Aug 13, 2023 | 0.91% (0.00911) | 80.78th | v3 (v2023.03.01) |
| Jul 20, 2023 | 1.16% (0.01159) | 83.00th | v3 (v2023.03.01) |
| Jun 10, 2023 | 1.00% (0.00999) | 81.47th | v3 (v2023.03.01) |
| May 8, 2023 | 0.98% (0.00982) | 81.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.29% (0.01286) | 83.66th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.97% (0.01974) | 78.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.97% (0.01974) | 77.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.97% (0.01974) | 56.20th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.59% (0.02590) | 55.26th | v1 |
| Jan 6, 2022 | 2.59% (0.02590) | 54.82th | v1 |
| Dec 1, 2021 | 2.59% (0.02590) | 79.49th | v1 |
| Sep 1, 2021 | 2.33% (0.02335) | 78.29th | v1 |
| Apr 14, 2021 | 2.33% (0.02335) | 0.00th | v1 |
References (13)
- http://www.securityfocus.com/bid/102803 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040276 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-5764 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1536661 Issue Tracking
- https://download.samba.org/pub/rsync/src-previews/rsync-3.1.3pre1-NEWS x_refsource_CONFIRMRelease NotesVendor Advisory
- https://git.samba.org/rsync.git/?p=rsync.git%3Ba=commit%3Bh=7706303828fcde524222babb2833864a4bd09e07 x_refsource_CONFIRM
- https://lists.debian.org/debian-lts-announce/2018/01/msg00021.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00027.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00028.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-5764
- https://security.gentoo.org/glsa/201805-04 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://usn.ubuntu.com/3543-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-5764
Change history (0)
No recorded changes yet.