| Name | CVE-2015-7547 |
| Description | Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc or libc6) before 2.23 allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted DNS response that triggers a call to the getaddrinfo function with the AF_UNSPEC or AF_INET6 address family, related to performing "dual A/AAAA DNS queries" and the libnss_dns.so.2 NSS module. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-416-1, DSA-3480-1, DSA-3481-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| glibc (PTS) | jessie, jessie (lts) | 2.19-18+deb8u14 | fixed |
| stretch (security) | 2.24-11+deb9u1 | fixed | |
| stretch (lts), stretch | 2.24-11+deb9u7 | fixed | |
| buster (security), buster, buster (lts) | 2.28-10+deb10u4 | fixed | |
| bullseye | 2.31-13+deb11u11 | fixed | |
| bullseye (security) | 2.31-13+deb11u10 | fixed | |
| bookworm | 2.36-9+deb12u8 | fixed | |
| bookworm (security) | 2.36-9+deb12u7 | fixed | |
| sid, trixie | 2.40-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| eglibc | source | squeeze | 2.11.3-4+deb6u11 | DLA-416-1 | ||
| eglibc | source | wheezy | 2.13-38+deb7u10 | DSA-3480-1 | ||
| eglibc | source | (unstable) | (unfixed) | |||
| glibc | source | jessie | 2.19-18+deb8u3 | DSA-3481-1 | ||
| glibc | source | (unstable) | 2.21-8 |
https://googleonlinesecurity.blogspot.cz/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html
https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html