Date: Mon, 30 Mar 2015 11:33:37 +0700 From: Рысь <lynx@...server.ru> To: musl@...ts.openwall.com Subject: Re: Security advisory for musl libc - stack-based buffer overflow in ipv6 literal parsing [CVE-2015-1817] On Mon, 30 Mar 2015 00:01:25 -0400 Rich Felker <dalias@...c.org> wrote: > A stack-based buffer overflow has been found in musl libc's ipv6 > address literal parsing code. Programs which call the inet_pton or > getaddrinfo function with AF_INET6 or AF_UNSPEC and untrusted address > strings are affected. Successful exploitation yields control of the > return address. Having enabled stack protector at the application > level does not mitigate the issue. All users should patch or upgrade. > > Software: musl libc (http://www.musl-libc.org) > > Severity: high > > Affected Versions: 0.9.15 - 1.0.4, 1.1.0 - 1.1.7. > > Bug introduced in commit: 78f889153167452de4cbced921f6428b3d4f663a > > Bug fixed in commit: fc13acc3dcb5b1f215c007f583a63551f6a71363 > > Patch: musl_dn_expand_overflow_fix.diff (attached) (fix+hardening) How much it affects readonly embedded systems as well? Does almost latest dropbear listening ssh port publicly is actually vulnerable?
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