The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to it by up to 4 bytes when converting strings to the ISO-2022-CN-EXT character set, which may be used to crash an application or overwrite a neighbouring variable.
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{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "libc6-s390-dbgsym": "2.27-3ubuntu1.6+esm2", "libc6-dev": "2.27-3ubuntu1.6+esm2", "multiarch-support": "2.27-3ubuntu1.6+esm2", "libc6-dev-s390": "2.27-3ubuntu1.6+esm2", "libc6-dev-i386": "2.27-3ubuntu1.6+esm2", "locales-all": "2.27-3ubuntu1.6+esm2", "libc6-amd64-dbgsym": "2.27-3ubuntu1.6+esm2", "libc6-pic": "2.27-3ubuntu1.6+esm2", "glibc-source": "2.27-3ubuntu1.6+esm2", "libc6-dev-amd64": "2.27-3ubuntu1.6+esm2", "nscd-dbgsym": "2.27-3ubuntu1.6+esm2", "nscd": "2.27-3ubuntu1.6+esm2", "glibc-doc": "2.27-3ubuntu1.6+esm2", "libc6-armel": "2.27-3ubuntu1.6+esm2", "libc6-armel-dbgsym": "2.27-3ubuntu1.6+esm2", "libc6": "2.27-3ubuntu1.6+esm2", "libc6-dbg": "2.27-3ubuntu1.6+esm2", "libc-bin": "2.27-3ubuntu1.6+esm2", "libc6-i386": "2.27-3ubuntu1.6+esm2", "libc6-udeb": "2.27-3ubuntu1.6+esm2", "libc6-dev-x32": "2.27-3ubuntu1.6+esm2", "libc-bin-dbgsym": "2.27-3ubuntu1.6+esm2", "libc-dev-bin": "2.27-3ubuntu1.6+esm2", "libc6-amd64": "2.27-3ubuntu1.6+esm2", "libc6-x32": "2.27-3ubuntu1.6+esm2", "libc6-s390": "2.27-3ubuntu1.6+esm2", "libc6-dev-armel": "2.27-3ubuntu1.6+esm2", "libc6-i386-dbgsym": "2.27-3ubuntu1.6+esm2", "locales": "2.27-3ubuntu1.6+esm2", "libc6-lse": "2.27-3ubuntu1.6+esm2", "libc-dev-bin-dbgsym": "2.27-3ubuntu1.6+esm2", "libc6-x32-dbgsym": "2.27-3ubuntu1.6+esm2" } ] }
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{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libc6-s390-dbgsym": "2.39-0ubuntu8.1", "libc6-dev": "2.39-0ubuntu8.1", "libc6-dev-s390": "2.39-0ubuntu8.1", "libc6-dev-i386": "2.39-0ubuntu8.1", "locales-all": "2.39-0ubuntu8.1", "libc6-amd64-dbgsym": "2.39-0ubuntu8.1", "glibc-source": "2.39-0ubuntu8.1", "libc6-dev-amd64": "2.39-0ubuntu8.1", "nscd-dbgsym": "2.39-0ubuntu8.1", "nscd": "2.39-0ubuntu8.1", "glibc-doc": "2.39-0ubuntu8.1", "libc6-dbg": "2.39-0ubuntu8.1", "libc6": "2.39-0ubuntu8.1", "libc-bin": "2.39-0ubuntu8.1", "libc6-i386": "2.39-0ubuntu8.1", "libc6-dev-x32": "2.39-0ubuntu8.1", "libc-bin-dbgsym": "2.39-0ubuntu8.1", "libc-dev-bin": "2.39-0ubuntu8.1", "libc6-amd64": "2.39-0ubuntu8.1", "libc6-x32": "2.39-0ubuntu8.1", "libc-devtools": "2.39-0ubuntu8.1", "libc-devtools-dbgsym": "2.39-0ubuntu8.1", "libc6-s390": "2.39-0ubuntu8.1", "libc6-i386-dbgsym": "2.39-0ubuntu8.1", "libc6-dev-dbgsym": "2.39-0ubuntu8.1", "locales": "2.39-0ubuntu8.1", "libc-dev-bin-dbgsym": "2.39-0ubuntu8.1", "libc6-x32-dbgsym": "2.39-0ubuntu8.1" } ] }