Libssh: libssh: denial of service via unchecked proxycommand fork() failure
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| Red Hat | Red Hat Enterprise Linux 10 | affected |
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| Red Hat | Red Hat Enterprise Linux 8 | affected |
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| Red Hat | Red Hat Enterprise Linux 8 | affected |
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| Red Hat | Red Hat Enterprise Linux 9 | affected |
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| Red Hat | Red Hat Enterprise Linux 9 | affected |
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| Red Hat | Red Hat Hardened Images | affected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Libssh | Libssh |
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| Redhat | Enterprise Linux |
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| Redhat | Hardened Images |
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Vendor Workaround
To mitigate this issue, avoid using the ProxyCommand feature in libssh client configurations. This prevents the vulnerable code path from being exercised, thereby eliminating the risk of local denial of service due to unchecked fork() failures.
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4844-1 | libssh security update |
Debian DSA |
DSA-6410-1 | libssh security update |
Ubuntu USN |
USN-8699-1 | libssh vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.104% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/o:redhat:enterprise_linux:9 |
cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:9::appstream cpe:/o:redhat:enterprise_linux:8::baseos cpe:/o:redhat:enterprise_linux:9::baseos |
| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/o:redhat:enterprise_linux:10.2 | |
| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Libssh
Libssh libssh Redhat hardened Images |
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| Vendors & Products |
Libssh
Libssh libssh Redhat hardened Images |
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-390 | |
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| References |
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| Metrics |
threat_severity
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threat_severity
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in libssh. When ProxyCommand is used, an unchecked fork() failure can be stored as process ID -1; during cleanup, signals may then be sent across the caller's accessible process tree, leading to local denial of service. | |
| Title | Libssh: libssh: denial of service via unchecked proxycommand fork() failure | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird |
|
| CPEs | cpe:/a:redhat:hummingbird:1 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat hummingbird |
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| References |
| |
| Metrics |
cvssV3_1
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