Description (CNA)
A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth_password of the file src/userauth.c. Such manipulation of the argument username_len/password_len leads to integer overflow. The attack may be launched remotely. The name of the patch is 256d04b60d80bf1190e96b0ad1e91b2174d744b1. A patch should be applied to remediate this issue.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / libssh2 | affected 1.11.0; affected 1.11.1 |
CWE
CWE-190, CWE-189
References
- https://vuldb.com/vuln/360555
- https://vuldb.com/vuln/360555/cti
- https://vuldb.com/submit/805564
- https://github.com/libssh2/libssh2/pull/1858
- https://github.com/libssh2/libssh2/commit/256d04b60d80bf1190e96b0ad1e91b2174d744b1
- https://github.com/libssh2/libssh2/
ADP enrichment
No English description supplied.
A flaw was found in the libssh2 library. A remote attacker can exploit an integer overflow vulnerability in the `userauth_password` function by manipulating the `username_len` or `password_len` arguments and cause a heap-based buffer overflow. This leads to a crash to the application linked to the library and potentially allows arbitrary code execution.
- https://access.redhat.com/security/cve/CVE-2026-7598
- https://bugzilla.redhat.com/show_bug.cgi?id=2464597
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7598.json
- https://access.redhat.com/errata/RHSA-2026:61752
- https://access.redhat.com/errata/RHSA-2026:7021
- https://access.redhat.com/errata/RHSA-2026:16736