NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package libssh-debugsource (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-LIBSSHDEBUGSOURCE-1341847
- published26 Jul 2021
- disclosed30 Jul 2020
Introduced: 30 Jul 2020
CVE-2020-16135 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libssh-debugsource package and not the libssh-debugsource package as distributed by RHEL.
libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.
References
- https://access.redhat.com/security/cve/CVE-2020-16135
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FCIKQRKXAAB4HMWM62EPZJ4DVBHIIEG6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JNW5GBC6JFN76VEWQXMLT5F7VCZ5AJ2E/
- https://security.gentoo.org/glsa/202011-05
- https://bugs.libssh.org/rLIBSSHe631ebb3e2247dd25e9678e6827c20dc73b73238
- https://bugs.libssh.org/T232
- https://gitlab.com/libssh/libssh-mirror/-/merge_requests/120
- https://lists.debian.org/debian-lts-announce/2020/07/msg00034.html
- https://access.redhat.com/errata/RHSA-2021:4387
- https://usn.ubuntu.com/4447-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCIKQRKXAAB4HMWM62EPZJ4DVBHIIEG6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JNW5GBC6JFN76VEWQXMLT5F7VCZ5AJ2E/
- https://www.oracle.com/security-alerts/cpuapr2022.html