Vulnerability · Published Jul 29, 2020 · Assigned by mitre
CVE-2020-16135
Medium 5.9
In plain English
A medium-severity security flaw in the libssh-devel package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.1% (higher than 91% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.9Medium
Exploit odds (30 days)4.1%top 9.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libssh-devel | 0.9.4-3.el8 | ALSA-2021:4387 |
| Alpine:v3.20 | libssh | 0.9.5-r0 | ALPINE-CVE-2020-16135 |
| Alpine:v3.21 | libssh | 0.9.5-r0 | ALPINE-CVE-2020-16135 |
| Alpine:v3.22 | libssh | 0.9.5-r0 | ALPINE-CVE-2020-16135 |
| Alpine:v3.23 | libssh | 0.9.5-r0 | ALPINE-CVE-2020-16135 |
| Alpine:v3.24 | libssh | 0.9.5-r0 | ALPINE-CVE-2020-16135 |
| Debian:12 | libssh | 0.9.5-1 | DEBIAN-CVE-2020-16135 |
| Debian:13 | libssh | 0.9.5-1 | DEBIAN-CVE-2020-16135 |
| Debian:14 | libssh | 0.9.5-1 | DEBIAN-CVE-2020-16135 |
| Rocky Linux:8 | libssh | 0:0.9.4-3.el8 | RLSA-2021:4387 |
Affected products (as reported)
References
- https://bugs.libssh.org/T232 x_refsource_MISC
- https://bugs.libssh.org/rLIBSSHe631ebb3e2247dd25e9678e6827c20dc73b73238 x_refsource_MISC
- https://gitlab.com/libssh/libssh-mirror/-/merge_requests/120 x_refsource_MISC
- [debian-lts-announce] 20200731 [SECURITY] [DLA 2303-1] libssh security update mailing-list, x_refsource_MLIST
- USN-4447-1 vendor-advisory, x_refsource_UBUNTU
- FEDORA-2020-f4f5e49cb8 vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-ac3e29073f vendor-advisory, x_refsource_FEDORA
- GLSA-202011-05 vendor-advisory, x_refsource_GENTOO
- https://www.oracle.com/security-alerts/cpuapr2022.html x_refsource_MISC