| Name | CVE-2016-2177 |
| Description | OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DLA-637-1, DSA-3673-1 |
| NVD severity | high (attack range: remote) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| openssl (PTS) | wheezy | 1.0.1e-2+deb7u20 | vulnerable |
| wheezy (security) | 1.0.1t-1+deb7u4 | fixed | |
| jessie | 1.0.1t-1+deb8u7 | fixed | |
| jessie (security) | 1.0.1t-1+deb8u8 | fixed | |
| stretch | 1.1.0f-3+deb9u1 | fixed | |
| stretch (security) | 1.1.0f-3+deb9u2 | fixed | |
| buster, sid | 1.1.0h-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| openssl | source | (unstable) | 1.0.2i-1 | low | ||
| openssl | source | jessie | 1.0.1t-1+deb8u4 | high | DSA-3673-1 | |
| openssl | source | wheezy | 1.0.1t-1+deb7u1 | high | DLA-637-1 |
Fixed in 1.0.2 branch in https://git.openssl.org/?p=openssl.git;a=commit;h=a004e72b95835136d3f1ea90517f706c24c03da7
https://www.openssl.org/blog/blog/2016/06/27/undefined-pointer-arithmetic/
https://www.openssl.org/news/secadv/20160922.txt
Fixed in 1.0.2i, 1.0.1u