Back
CVE-2022-42898
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code…
High8.8EPSS 6.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 6.9% · top 5.9% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
n/a
- affected n/a
References (12)
- https://web.mit.edu/kerberos/advisories/ (opens in a new tab)x_transferred
- https://www.samba.org/samba/security/CVE-2022-42898.html (opens in a new tab)x_transferred
- https://github.com/krb5/krb5/commit/ea92d2f0fcceb54a70910fa32e9a0d7a5afc3583 (opens in a new tab)x_transferred
- https://github.com/heimdal/heimdal/security/advisories/GHSA-64mq-fvfj-5x3c (opens in a new tab)x_transferred
- https://web.mit.edu/kerberos/krb5-1.20/README-1.20.1.txt (opens in a new tab)x_transferred
- https://web.mit.edu/kerberos/krb5-1.19/ (opens in a new tab)x_transferred
- https://bugzilla.samba.org/show_bug.cgi?id=15203 (opens in a new tab)x_transferred
- https://security.netapp.com/advisory/ntap-20230216-0008/ (opens in a new tab)x_transferred
- https://security.netapp.com/advisory/ntap-20230223-0001/ (opens in a new tab)x_transferred
- GLSA-202309-06 (opens in a new tab)vendor-advisoryx_transferred
- GLSA-202310-06 (opens in a new tab)vendor-advisoryx_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-42898)Record last updated .