openssh: AcceptEnv environment restriction bypass flaw
Published Mar 18, 2014
4.2
MEDIUMCVSS 3.1
EPSS 4.75%
Description
sshd in OpenSSH before 6.6 does not properly support wildcards on AcceptEnv lines in sshd_config, which allows remote attackers to bypass intended environment restrictions by using a substring located before a wildcard character.
Affected products
No data.
No data.
Red Hat Enterprise Linux 6
openssh-0:5.3p1-104.el6
Fixed · RHSA-2014:1552
Red Hat Enterprise Linux 5
openssh
Will not fix
Red Hat Enterprise Linux 7
openssh
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | openssh-0:5.3p1-104.el6 | Fixed | RHSA-2014:1552 |
| Red Hat Enterprise Linux 5 | openssh | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | openssh | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the version of openssh as shipped with Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this issue as having Low security impact. This issue is not planned to be fixed in Red Hat Enterprise Linux 5 as it is now in Production 3 Phase of the support and maintenance life cycle, https://access.redhat.com/support/policy/updates/errata/
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
AV:N/AC:M/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed May 28, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 4.75% (0.04751) | 91.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.73% (0.04730) | 90.65th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.12% (0.00117) | 28.11th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.33% (0.00331) | 71.97th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.30% (0.00299) | 68.64th | v3 (v2023.03.01) |
| Oct 28, 2023 | 0.30% (0.00299) | 66.01th | v3 (v2023.03.01) |
| Apr 11, 2023 | 0.29% (0.00290) | 64.28th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.41% (0.00411) | 69.87th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.53% (0.02528) | 81.92th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.53% (0.02528) | 80.15th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.53% (0.02528) | 58.66th | v2 (v2022.01.01) |
References (27)
- http://advisories.mageia.org/MGASA-2014-0143.html x_refsource_CONFIRM
- http://aix.software.ibm.com/aix/efixes/security/openssh_advisory4.asc x_refsource_CONFIRM
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html vendor-advisoryx_refsource_APPLE
- http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134026.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133537.html vendor-advisoryx_refsource_FEDORA
- http://marc.info/?l=bugtraq&m=141576985122836&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=openbsd-security-announce&m=139492048027313&w=2 mailing-listx_refsource_MLIST
- http://rhn.redhat.com/errata/RHSA-2014-1552.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/57488 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/57574 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59313 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59855 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2014/dsa-2894 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:068 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:095 vendor-advisoryx_refsource_MANDRIVA
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/66355 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1029925 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2155-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2014-2532 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1077843 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/91986 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2014-2532
- https://support.apple.com/HT205267 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2014-2532
Change history (0)
No recorded changes yet.