Advisory ROSA-SA-2021-1873

Software: libidn 1.28
OS: Cobalt 7.9

CVE-ID: CVE-2015-2059
CVE-Crit: MEDIUM
CVE-DESC: The stringprep_utf8_to_ucs4 function in libin prior to 1.31, used in jabberd2, allows context-sensitive attackers to read system memory and possibly exert other undefined influence via invalid UTF-8 characters in a string, which causes an out-of-bounds read.
CVE-STATUS: default
CVE-REV: default

CVE-ID: CVE-2015-8948
CVE-Crit: HIGH
CVE-DESC: idn in GNU libidn before 1.33 may allow remote attackers to obtain sensitive memory information by reading a null byte as input, which causes out-of-bounds reads.
CVE-STATUS: default
CVE-REV: default

CVE-ID: CVE-2016-6261
CVE-Crit: HIGH
CVE-DESC: The idna_to_ascii_4i function in lib / idna.c in libidn before 1.33 allows context-sensitive attackers to cause a denial of service (read out of range and crash) via 64 bytes of input.
CVE-STATUS: default
CVE-REV: default

CVE-ID: CVE-2016-6262
CVE-Crit: HIGH
CVE-DESC: idn in libidn before 1.33 could allow remote attackers to obtain sensitive memory information by reading a null byte as input, causing reads outside the valid region - a vulnerability different from CVE-2015-8948.
CVE-STATUS: default
CVE-REV: default

CVE-ID: CVE-2016-6263
CVE-Crit: HIGH
CVE-DESC: The stringprep_utf8_nfkc_normalize function in lib / nfkc.c in libidn before 1.33 allows context-sensitive attackers to cause a denial of service (read out of range and crash) via generated UTF-8 data.
CVE-STATUS: default
CVE-REV: default