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VuXML ID	Description
3f3837cc-48fb-4414-aa46-5b1c23c9feae	krb5 -- Multiple vulnerabilities MIT reports: CVE-2017-11368: In MIT krb5 1.7 and later, an authenticated attacker can cause an assertion failure in krb5kdc by sending an invalid S4U2Self or S4U2Proxy request. CVE-2017-11462: RFC 2744 permits a GSS-API implementation to delete an existing security context on a second or subsequent call to gss_init_sec_context() or gss_accept_sec_context() if the call results in an error. This API behavior has been found to be dangerous, leading to the possibility of memory errors in some callers. For safety, GSS-API implementations should instead preserve existing security contexts on error until the caller deletes them. All versions of MIT krb5 prior to this change may delete acceptor contexts on error. Versions 1.13.4 through 1.13.7, 1.14.1 through 1.14.5, and 1.15 through 1.15.1 may also delete initiator contexts on error. Discovery 2017-07-14 Entry 2017-10-18 krb5 < 1.14.6 >= 1.15 lt 1.15.2 krb5-devel < 1.14.6 >= 1.15 lt 1.15.2 krb5-115 < 1.15.2 krb5-114 < 1.14.6 krb5-113 < 1.14.6 https://nvd.nist.gov/vuln/detail/CVE-2017-11368 https://krbdev.mit.edu/rt/Ticket/Display.html?id=8599 https://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970 https://nvd.nist.gov/vuln/detail/CVE-2017-11462 https://krbdev.mit.edu/rt/Ticket/Display.html?id=8598 https://github.com/krb5/krb5/commit/56f7b1bc95a2a3eeb420e069e7655fb181ade5cf CVE-2017-11368 CVE-2017-11462
62d45229-4fa0-11e6-9d13-206a8a720317	krb5 -- KDC denial of service vulnerability Major changes in krb5 1.14.3 and krb5 1.13.6: Fix a rare KDC denial of service vulnerability when anonymous client principals are restricted to obtaining TGTs only [CVE-2016-3120] . Discovery 2016-07-20 Entry 2016-07-21 Modified 2016-07-26 krb5-113 < 1.13.6 krb5-114 < 1.14.3 CVE-2016-3120 http://web.mit.edu/kerberos/krb5-1.14/

VuXML ID

Description

3f3837cc-48fb-4414-aa46-5b1c23c9feae

krb5 -- Multiple vulnerabilities

MIT reports:

CVE-2017-11368:

In MIT krb5 1.7 and later, an authenticated attacker can cause an assertion failure in krb5kdc by sending an invalid S4U2Self or S4U2Proxy request.

CVE-2017-11462:

RFC 2744 permits a GSS-API implementation to delete an existing security context on a second or subsequent call to gss_init_sec_context() or gss_accept_sec_context() if the call results in an error. This API behavior has been found to be dangerous, leading to the possibility of memory errors in some callers. For safety, GSS-API implementations should instead preserve existing security contexts on error until the caller deletes them.

All versions of MIT krb5 prior to this change may delete acceptor contexts on error. Versions 1.13.4 through 1.13.7, 1.14.1 through 1.14.5, and 1.15 through 1.15.1 may also delete initiator contexts on error.

Discovery 2017-07-14
Entry 2017-10-18
krb5

< 1.14.6

>= 1.15 lt 1.15.2

krb5-devel

< 1.14.6

>= 1.15 lt 1.15.2

krb5-115

< 1.15.2

krb5-114

< 1.14.6

krb5-113

< 1.14.6

https://nvd.nist.gov/vuln/detail/CVE-2017-11368
https://krbdev.mit.edu/rt/Ticket/Display.html?id=8599
https://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970
https://nvd.nist.gov/vuln/detail/CVE-2017-11462
https://krbdev.mit.edu/rt/Ticket/Display.html?id=8598
https://github.com/krb5/krb5/commit/56f7b1bc95a2a3eeb420e069e7655fb181ade5cf
CVE-2017-11368
CVE-2017-11462

62d45229-4fa0-11e6-9d13-206a8a720317

krb5 -- KDC denial of service vulnerability

Major changes in krb5 1.14.3 and krb5 1.13.6:

Fix a rare KDC denial of service vulnerability when anonymous client principals are restricted to obtaining TGTs only [CVE-2016-3120] .

Discovery 2016-07-20
Entry 2016-07-21
Modified 2016-07-26
krb5-113

< 1.13.6

krb5-114

< 1.14.3

CVE-2016-3120
http://web.mit.edu/kerberos/krb5-1.14/