Vulnerability · Published Oct 26, 2020 · Assigned by mitre
CVE-2020-27743
Critical 9.8
In plain English
A critical-severity security flaw in the libpam-tacplus package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 78% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)1.7%top 22.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
libtac in pam_tacplus through 1.5.1 lacks a check for a failure of RAND_bytes()/RAND_pseudo_bytes(). This could lead to use of a non-random/predictable session_id.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | libpam-tacplus | no fix listed | UBUNTU-CVE-2020-27743 |
Affected products (as reported)
References
- https://github.com/kravietz/pam_tacplus/pull/163 x_refsource_MISC
- https://tools.ietf.org/html/rfc8907 x_refsource_MISC