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    Debian: DSA-3395-1: krb5 security update

    Date 06 Nov 2015
    223
    Posted By LinuxSecurity Advisories
    Several vulnerabilities were discovered in krb5, the MIT implementation of Kerberos. The Common Vulnerabilities and Exposures project identifies the following problems:
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-3395-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    November 06, 2015                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : krb5
    CVE ID         : CVE-2015-2695 CVE-2015-2696 CVE-2015-2697
    Debian Bug     : 803083 803084 803088
    
    Several vulnerabilities were discovered in krb5, the MIT implementation
    of Kerberos. The Common Vulnerabilities and Exposures project identifies
    the following problems:
    
    CVE-2015-2695
    
        It was discovered that applications which call gss_inquire_context()
        on a partially-established SPNEGO context can cause the GSS-API
        library to read from a pointer using the wrong type, leading to a
        process crash.
    
    CVE-2015-2696
    
        It was discovered that applications which call gss_inquire_context()
        on a partially-established IAKERB context can cause the GSS-API
        library to read from a pointer using the wrong type, leading to a
        process crash.
    
    CVE-2015-2697
    
        It was discovered that the build_principal_va() function incorrectly
        handles input strings. An authenticated attacker can take advantage
        of this flaw to cause a KDC to crash using a TGS request with a
        large realm field beginning with a null byte.
    
    For the oldstable distribution (wheezy), these problems have been fixed
    in version 1.10.1+dfsg-5+deb7u4.
    
    For the stable distribution (jessie), these problems have been fixed in
    version 1.12.1+dfsg-19+deb8u1.
    
    For the testing distribution (stretch), these problems have been fixed
    in version 1.13.2+dfsg-3.
    
    For the unstable distribution (sid), these problems have been fixed in
    version 1.13.2+dfsg-3.
    
    We recommend that you upgrade your krb5 packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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