Uncontrolled Recursion Affecting krb5-pkinit package, versions <0:1.15.1-50.0.1.el7
Snyk CVSS
Attack Complexity
Low
Availability
High
Threat Intelligence
EPSS
0.52% (77th
percentile)
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Test your applications- Snyk ID SNYK-ORACLE7-KRB5PKINIT-2598884
- published 10 Apr 2022
- disclosed 6 Nov 2020
Introduced: 6 Nov 2020
CVE-2020-28196 Open this link in a new tabHow to fix?
Upgrade Oracle:7
krb5-pkinit
to version 0:1.15.1-50.0.1.el7 or higher.
This issue was patched in ELSA-2021-9294
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream krb5-pkinit
package and not the krb5-pkinit
package as distributed by Oracle
.
See How to fix?
for Oracle:7
relevant fixed versions and status.
MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.
References
- https://linux.oracle.com/cve/CVE-2020-28196.html
- https://linux.oracle.com/errata/ELSA-2021-1593.html
- https://github.com/krb5/krb5/commit/57415dda6cf04e73ffc3723be518eddfae599bfd
- https://lists.debian.org/debian-lts-announce/2020/11/msg00011.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/73IGOG6CZAVMVNS4GGRMOLOZ7B6QVA7F/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KPH2V3WSQTELROZK3GFCPQDOFLKIZ6H5/
- https://security.gentoo.org/glsa/202011-17
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/45KKOZQWIIIW5C45PJVGQ32AXBSYNBE7/
- https://www.debian.org/security/2020/dsa-4795
- https://security.netapp.com/advisory/ntap-20201202-0001/
- https://security.netapp.com/advisory/ntap-20210513-0002/
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/45KKOZQWIIIW5C45PJVGQ32AXBSYNBE7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73IGOG6CZAVMVNS4GGRMOLOZ7B6QVA7F/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPH2V3WSQTELROZK3GFCPQDOFLKIZ6H5/