PublicDateAtUSN: 2017-05-04
Candidate: CVE-2017-8779
PublicDate: 2017-05-04 14:29:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8779
 http://www.openwall.com/lists/oss-security/2017/05/04/1
 https://github.com/guidovranken/rpcbomb/
 http://openwall.com/lists/oss-security/2017/05/03/12
 http://openwall.com/lists/oss-security/2017/05/04/1
 https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/
 https://ubuntu.com/security/notices/USN-3759-1
 https://ubuntu.com/security/notices/USN-3759-2
 https://ubuntu.com/security/notices/USN-4986-1
 https://ubuntu.com/security/notices/USN-4986-2
Description:
 rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through
 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data
 size during memory allocation for XDR strings, which allows remote
 attackers to cause a denial of service (memory consumption with no
 subsequent free) via a crafted UDP packet to port 111, aka rpcbomb.
Ubuntu-Description:
Notes:
 mdeslaur> patch used by Debian in 0.2.3-0.6 isn't the correct one and
 mdeslaur> the reproducer still works against rpcbind
Bugs:
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=861834
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=861835
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=861836
 https://bugs.launchpad.net/ubuntu/+source/rpcbind/+bug/1687930
 https://bugs.launchpad.net/ubuntu/+source/rpcbind/+bug/1925280
Priority: medium
Discovered-by:
Assigned-to: mdeslaur
CVSS:
 nvd: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H [7.5 HIGH]

Patches_libtirpc:
upstream_libtirpc: released (0.2.5-1.2)
precise_libtirpc: ignored (reached end-of-life)
precise/esm_libtirpc: released (0.2.2-5ubuntu0.1)
trusty_libtirpc: released (0.2.2-5ubuntu2.1)
trusty/esm_libtirpc: released (0.2.2-5ubuntu2.1)
vivid/stable-phone-overlay_libtirpc: DNE
vivid/ubuntu-core_libtirpc: DNE
xenial_libtirpc: released (0.2.5-1ubuntu0.1)
esm-infra/xenial_libtirpc: released (0.2.5-1ubuntu0.1)
yakkety_libtirpc: ignored (reached end-of-life)
zesty_libtirpc: ignored (reached end-of-life)
artful_libtirpc: not-affected (0.2.5-1.2)
bionic_libtirpc: not-affected (0.2.5-1.2)
cosmic_libtirpc: not-affected (0.2.5-1.2)
disco_libtirpc: not-affected (0.2.5-1.2)
eoan_libtirpc: not-affected (0.2.5-1.2)
focal_libtirpc: not-affected (0.2.5-1.2)
groovy_libtirpc: not-affected (0.2.5-1.2)
hirsute_libtirpc: not-affected (0.2.5-1.2)
impish_libtirpc: not-affected (0.2.5-1.2)
jammy_libtirpc: not-affected (0.2.5-1.2)
devel_libtirpc: not-affected (0.2.5-1.2)

Patches_rpcbind:
 upstream: https://git.linux-nfs.org/?p=steved/rpcbind.git;a=commit;h=7ea36eeece56b59f98e469934e4c20b4da043346
upstream_rpcbind: needs-triage
precise_rpcbind: ignored (reached end-of-life)
precise/esm_rpcbind: ignored (end of ESM support, was needs-triage)
trusty_rpcbind: ignored (reached end-of-life)
trusty/esm_rpcbind: released (0.2.1-2ubuntu2.2+esm1)
vivid/stable-phone-overlay_rpcbind: DNE
vivid/ubuntu-core_rpcbind: DNE
xenial_rpcbind: ignored (end of standard support, was needed)
esm-infra/xenial_rpcbind: released (0.2.3-0.2ubuntu0.16.04.1+esm1)
yakkety_rpcbind: ignored (reached end-of-life)
zesty_rpcbind: ignored (reached end-of-life)
artful_rpcbind: ignored (reached end-of-life)
bionic_rpcbind: released (0.2.3-0.6ubuntu0.18.04.2)
cosmic_rpcbind: ignored (reached end-of-life)
disco_rpcbind: not-affected (1.2.5-0.3)
eoan_rpcbind: not-affected (1.2.5-0.3build1)
focal_rpcbind: not-affected (1.2.5-8)
groovy_rpcbind: not-affected (1.2.5-9)
hirsute_rpcbind: not-affected (1.2.5-9)
impish_rpcbind: not-affected (1.2.5-9)
jammy_rpcbind: not-affected (1.2.5-9)
devel_rpcbind: not-affected (1.2.5-9)

Patches_ntirpc:
upstream_ntirpc: released (1.4.4-1)
precise_ntirpc: DNE
precise/esm_ntirpc: DNE
trusty_ntirpc: DNE
trusty/esm_ntirpc: DNE
vivid/stable-phone-overlay_ntirpc: DNE
vivid/ubuntu-core_ntirpc: DNE
xenial_ntirpc: ignored (end of standard support, was needed)
yakkety_ntirpc: ignored (reached end-of-life)
zesty_ntirpc: ignored (reached end-of-life)
artful_ntirpc: ignored (reached end-of-life)
bionic_ntirpc: not-affected (1.6.1-1)
cosmic_ntirpc: not-affected (1.6.1-1)
disco_ntirpc: not-affected (1.6.1-1)
eoan_ntirpc: not-affected (1.6.1-1)
focal_ntirpc: not-affected (1.6.1-1)
groovy_ntirpc: not-affected (1.6.1-1)
hirsute_ntirpc: not-affected (1.6.1-1)
impish_ntirpc: not-affected (1.6.1-1)
jammy_ntirpc: not-affected (1.6.1-1)
devel_ntirpc: not-affected (1.6.1-1)