Date: Thu, 21 Jul 2016 09:27:41 -0400 (EDT) From: cve-assign@...re.org To: andreas.stieger@...e.com Cc: cve-assign@...re.org, oss-security@...ts.openwall.com Subject: Re: CVE request: multiple issues fixed in GNU libidn 1.33 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 > The GNU libidn 1.33 release was announced with the following: > > https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html > ** libidn: Fix out-of-bounds stack read in idna_to_ascii_4i. > See tests/tst_toascii64oob.c for regression check (and the comment in > it how to use it). Reported by Hanno Boeck > Test: > http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=9a1a7e15d0706634971364493fbb06e77e74726c > Fix: > http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72d > Changelog: > http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=d4c533a5d975bf49090d3cd40acd230b8f79dd32 > Follow-up memory leak fix: > http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=11abd0e02c16f9e0b6944aea4ef0f2df44b42dd4 > lib/idna.c Use CVE-2016-6261. There is no CVE ID for a memory leak. The memory leak was a consequence of the original fix, and was eliminated minutes later during development. > ** idn: Solve out-of-bounds-read when reading one zero byte as input. > Also replaced fgets with getline. Reported by Hanno Boeck idn is described at http://git.savannah.gnu.org/cgit/libidn.git/tree/src/idn.c as "Command line interface to the internationalized domain name library." An out-of-bounds read in a command-line program is not always security relevant. Also, msg00009.html lists the various items as "Noteworthy changes" and not specifically as security fixes. We think you might mean that someone can use idn to convert a file, and then send the converted file to an untrusted party. If there is an out-of-bounds read, then the converted file might include arbitrary data from process memory. > Fix: > http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=570e68886c41c2e765e6218cb317d9a9a447a041 Use CVE-2015-8948. > Follow-up fix: > http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=5e3cb9c7b5bf0ce665b9d68f5ddf095af5c9ba60 Use CVE-2016-6262. > ** libidn: stringprep_utf8_nfkc_normalize reject invalid UTF-8. > It was always documented to only accept UTF-8 data, but now it doesn't > crash when presented with such data. Reported by Hanno Boeck. > Test / Fix: > http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555 > Changelog: > http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1d2413555dcd1fef26b80445a00a4637965a2df0 > lib/nfkc.c Use CVE-2016-6263. - -- CVE Assignment Team M/S M300, 202 Burlington Road, Bedford, MA 01730 USA [ A PGP key is available for encrypted communications at http://cve.mitre.org/cve/request_id.html ] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJXkMzMAAoJEHb/MwWLVhi2ZDgP+QE2UHxAjG+0ISqnjZPN8vx3 0Qr5kqKPggmbRomcHJeQmpq3PNir190KkSLo5dOwz2mPoafMsKmvA1jaropmsk/1 Ic87+9b8dbQIJDVzeCLXx4uIzOkfBpE6tw1M348fSl0v6qBQcUStOLKeeDmP5t3S rZZRbc/Xn45XanXRPzsaEOVMRS9xyeokip/kLP6zcEux6K8jF2eCIib/FasKZjKD 7GVOh244omUJirJn8Mwx60NsEM5h/NsXIoaAOXeAjY9TmM0XcSq8iVpqwciIPidf gJo9eqe7t8sQdMQxL5fWztqoP4coG0XviAHAeimH9Ibi+wg4H5eU3e6ZTg7yGDKR 0FmDnge/fNiN4z9WmcV2Ajs4m94ECLhhQo9W3snghrUhqGZc+pDYIOvLdJAFrua7 qGcdNRgZrXEOzxJ1Q53aRbjpioHZux02VYAmS2bl4tM+4ZjqF9COTJls8JxCJTfB VIWGade1/n3VajORtj6CIPAFaEwpNQ2z1rm82d0csuvxGb3YigfSC4I8W0F7RcAj JXPrXrF5uIHX1yFKxMRlKC9Qh13733DSyrhh+MiRvTESVZ7j3Wb4XgWTAE7Sb9Jl WdG1p5Yf928LzfDbDBkA+TY5tO6Mou8bv9Ef09pK/5e6tmvCX5BTNS+SQa85vsxR wVKg00/ZPnQxPefKPgxx =dlS/ -----END PGP SIGNATURE-----
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