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AUSCERT External Security Bulletin Redistribution
ESB-2019.3705
SUSE-SU-2019:2517-1 Security update for libseccomp
3 October 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: libseccomp
Publisher: SUSE
Operating System: SUSE
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-9893
Reference: ESB-2019.1959.2
Original Bulletin:
https://www.suse.com/support/update/announcement/2019/suse-su-20192517-1.html
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SUSE Security Update: Security update for libseccomp
______________________________________________________________________________
Announcement ID: SUSE-SU-2019:2517-1
Rating: moderate
References: #1082318 #1128828 #1142614
Cross-References: CVE-2019-9893
Affected Products:
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
SUSE Linux Enterprise Module for Basesystem 15-SP1
SUSE Linux Enterprise Module for Basesystem 15
______________________________________________________________________________
An update that solves one vulnerability and has two fixes is now available.
Description:
This update for libseccomp fixes the following issues:
Security issues fixed:
o CVE-2019-9893: An incorrect generation of syscall filters in libseccomp was
fixed (bsc#1128828)
libseccomp was updated to new upstream release 2.4.1:
o Fix a BPF generation bug where the optimizer mistakenly identified
duplicate BPF code blocks.
libseccomp was updated to 2.4.0 (bsc#1128828 CVE-2019-9893):
o Update the syscall table for Linux v5.0-rc5
o Added support for the SCMP_ACT_KILL_PROCESS action
o Added support for the SCMP_ACT_LOG action and SCMP_FLTATR_CTL_LOG attribute
o Added explicit 32-bit (SCMP_AX_32(...)) and 64-bit (SCMP_AX_64(...))
argument comparison macros to help protect against unexpected sign
extension
o Added support for the parisc and parisc64 architectures
o Added the ability to query and set the libseccomp API level via
seccomp_api_get(3) and seccomp_api_set(3)
o Return -EDOM on an endian mismatch when adding an architecture to a filter
o Renumber the pseudo syscall number for subpage_prot() so it no longer
conflicts with spu_run()
o Fix PFC generation when a syscall is prioritized, but no rule exists
o Numerous fixes to the seccomp-bpf filter generation code
o Switch our internal hashing function to jhash/Lookup3 to MurmurHash3
o Numerous tests added to the included test suite, coverage now at ~92%
o Update our Travis CI configuration to use Ubuntu 16.04
o Numerous documentation fixes and updates
libseccomp was updated to release 2.3.3:
o Updated the syscall table for Linux v4.15-rc7
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Module for Open Buildservice Development Tools
15-SP1:
zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2019-2517=1
o SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:
zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2019-2517=1
o SUSE Linux Enterprise Module for Basesystem 15-SP1:
zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2019-2517=1
o SUSE Linux Enterprise Module for Basesystem 15:
zypper in -t patch SUSE-SLE-Module-Basesystem-15-2019-2517=1
Package List:
o SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1
(aarch64 ppc64le s390x x86_64):
libseccomp-debugsource-2.4.1-3.3.1
libseccomp-tools-2.4.1-3.3.1
libseccomp-tools-debuginfo-2.4.1-3.3.1
o SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
(aarch64 ppc64le s390x x86_64):
libseccomp-debugsource-2.4.1-3.3.1
libseccomp-tools-2.4.1-3.3.1
libseccomp-tools-debuginfo-2.4.1-3.3.1
o SUSE Linux Enterprise Module for Basesystem 15-SP1 (aarch64 ppc64le s390x
x86_64):
libseccomp-debugsource-2.4.1-3.3.1
libseccomp-devel-2.4.1-3.3.1
libseccomp2-2.4.1-3.3.1
libseccomp2-debuginfo-2.4.1-3.3.1
o SUSE Linux Enterprise Module for Basesystem 15-SP1 (x86_64):
libseccomp2-32bit-2.4.1-3.3.1
libseccomp2-32bit-debuginfo-2.4.1-3.3.1
o SUSE Linux Enterprise Module for Basesystem 15 (aarch64 ppc64le s390x
x86_64):
libseccomp-debugsource-2.4.1-3.3.1
libseccomp-devel-2.4.1-3.3.1
libseccomp2-2.4.1-3.3.1
libseccomp2-debuginfo-2.4.1-3.3.1
o SUSE Linux Enterprise Module for Basesystem 15 (x86_64):
libseccomp2-32bit-2.4.1-3.3.1
libseccomp2-32bit-debuginfo-2.4.1-3.3.1
References:
o https://www.suse.com/security/cve/CVE-2019-9893.html
o https://bugzilla.suse.com/1082318
o https://bugzilla.suse.com/1128828
o https://bugzilla.suse.com/1142614
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