-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3481-1 security@xxxxxxxxxx https://www.debian.org/security/ Florian Weimer February 16, 2016 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : glibc CVE ID : CVE-2015-7547 CVE-2015-8776 CVE-2015-8778 CVE-2015-8779 Debian Bug : 812441 812445 812455 Several vulnerabilities have been fixed in the GNU C Library, glibc. The first vulnerability listed below is considered to have critical impact. CVE-2015-7547 The Google Security Team and Red Hat discovered that the glibc host name resolver function, getaddrinfo, when processing AF_UNSPEC queries (for dual A/AAAA lookups), could mismanage its internal buffers, leading to a stack-based buffer overflow and arbitrary code execution. This vulnerability affects most applications which perform host name resolution using getaddrinfo, including system services. CVE-2015-8776 Adam Nielsen discovered that if an invalid separated time value is passed to strftime, the strftime function could crash or leak information. Applications normally pass only valid time information to strftime; no affected applications are known. CVE-2015-8778 Szabolcs Nagy reported that the rarely-used hcreate and hcreate_r functions did not check the size argument properly, leading to a crash (denial of service) for certain arguments. No impacted applications are known at this time. CVE-2015-8779 The catopen function contains several unbound stack allocations (stack overflows), causing it the crash the process (denial of service). No applications where this issue has a security impact are currently known. While it is only necessary to ensure that all processes are not using the old glibc anymore, it is recommended to reboot the machines after applying the security upgrade. For the stable distribution (jessie), these problems have been fixed in version 2.19-18+deb8u3. For the unstable distribution (sid), these problems will be fixed in version 2.21-8. We recommend that you upgrade your glibc 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: debian-security-announce@xxxxxxxxxxxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJWwy2KAAoJEAVMuPMTQ89EIIIP/1Sa7Mlc0xJ0b4v5QFf1UL1N zLPxw/JXbExR1sX9RUt8mCzdOoz5rcwaR8yyvGZS0A+NwtSgLr3sNKweMrrf3yaH Ul7vziRfgcNjnWdN5+aeHp+lIUEIgCbT6JJVqt/lfXO8/vo23V2EZKVTtnNt7oR6 FmhSW73+jt8v9qxdHVDhE0ivXhs7Neeo7oLfolAX9n+ZFjRhT68ERRTyPaq3dnfS PdDLdnn5V+g+3y9zjurGNvmSp7OcOq7aKclEFtQBoEF6ZFmqhUYkuOmAkhlQlMMX nJGqZYrY2pgz1pHZZXJGY31WIYDaYR0cSIoe/c49ejT+Kug9IMLBMruvwAglX+gd IAFflJ8Iar9StiPwMz3HloLbNT1vVCvlvdbEJiMrgpTMRUyacG6GfHVid2tso+n7 ZpWnxI2B62lwJU/Jq2yxRkIVtGs9go7lvGEmUs/T4Pl87otULBAfGD0xXtt2vY+A hrEbjCgNMrbrjiCdm/w2MW+hLwiXgRn617Q7w9e5gWnSjIEpybrrwKAR1QsDxxNM zwjgwQdTEivJ5dtXQdwkHg+2ba1/gqKqMU9b0rlBf/YF0e73I/FTaDu1nEgOX4En kq6ZwrPBlptv0kCR0EtyX6xmt4Q3j8tF1IwPyEwfiyPKcN0cxuk7LLILc7ewPnGU pPKkk9EqhPWAP7+Ufo9p =lzjt -----END PGP SIGNATURE-----
