An update of the gcc package has been released.

An update for gcc is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and Ada 95 GNU, as well as related support libraries.

Security Fix(es) :

* gcc: GCC generates incorrect code for RDRAND/RDSEED intrinsics (CVE-2017-11671)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section.

Fixes CVE-2017-11671. Fixed bugs (http://gcc.gnu.org/PRNNNNN): 31468, 43434, 45053, 49244, 50345, 53915, 56469, 60818, 60992, 61636, 61729, 62045, 64238, 65542, 65705, 65972, 66295, 66669, 67353, 67440, 68163, 68491, 68972, 69264, 69699, 69804, 69823, 69953, 70601, 70844, 70878, 71294, 71310, 71444, 71458, 71510, 71778, 71838, 72775, 73650, 75964, 76731, 77333, 77563, 77728, 77850, 78002, 78049, 78236, 78282, 78331, 78339, 78474, 78532, 78543, 78644, 78783, 78992, 79027, 79050, 79141, 79155, 79255, 79256, 79261, 79264, 79396, 79434, 79439, 79453, 79461, 79494, 79508, 79511, 79512, 79514, 79519, 79536, 79537, 79544, 79545, 79548, 79552, 79558, 79559, 79562, 79566, 79568, 79570, 79572, 79574, 79576, 79577, 79579, 79580, 79587, 79607, 79631, 79639, 79640, 79641, 79664, 79666, 79676, 79681, 79687, 79729, 79732, 79733, 79749, 79752, 79753, 79756, 79760, 79761, 79769, 79770, 79789, 79796, 79803, 79807, 79831, 79849, 79850, 79883, 79892, 79894, 79896, 79900, 79901, 79903, 79906, 79931, 79932, 79940, 79944, 79945, 79947, 79951, 79962, 79971, 79977, 79980, 79984, 80004, 80019, 80025, 80034, 80037, 80041, 80043, 80067, 80075, 80081, 80082, 80090, 80091, 80092, 80094, 80097, 80101, 80103, 80104, 80112, 80113, 80117, 80122, 80123, 80129, 80137, 80141, 80150, 80166, 80167, 80168, 80170, 80171, 80176, 80179, 80180, 80181, 80205, 80212, 80218, 80222, 80224, 80241, 80244, 80246, 80262, 80267, 80275, 80281, 80286, 80294, 80297, 80298, 80315, 80316, 80321, 80334, 80341, 80348, 80349, 80350, 80361, 80362, 80363, 80376, 80382, 80385, 80392, 80394, 80413, 80426, 80429, 80448, 80453, 80462, 80474, 80492, 80493, 80501, 80504, 80510, 80539, 80569, 80589, 80618, 80663, 80678, 80692, 80718, 80752, 80799, 80809, 80822, 80853, 80902, 80904, 80909, 80918, 80921, 80929, 80966, 80968, 80973, 80984, 81002, 81006, 81011, 81130, 81154, 81162, 81192, 81300, 81305, 81375, 81407, 81471, 81487, 81555, 81556

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the gcc packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - The gcc package contains the GNU Compiler Collection     version 4.8.You'll need this package in order to     compile C code.

  - Security fix(es):

  - Under certain circumstances, the ix86_expand_builtin     function in i386.c in GNU Compiler Collection (GCC)     version 4.6, 4.7, 4.8, 4.9, 5 before 5.5, and 6 before     6.4 will generate instruction sequences that clobber     the status flag of the RDRAND and RDSEED intrinsics     before it can be read, potentially causing failures of     these instructions to go unreported. This could     potentially lead to less randomness in random number     generation.(CVE-2017-11671)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Security Fix(es) :

  - gcc: GCC generates incorrect code for RDRAND/RDSEED     intrinsics (CVE-2017-11671)

Additional Changes :

This update for gcc48 fixes the following issues :

Security issues fixed :

  - A new option -fstack-clash-protection is now offered,     which mitigates the stack clash type of attacks.
    [bnc#1039513] Future maintenance releases of packages     will be built with this option.

  - CVE-2017-11671: Fixed rdrand/rdseed code generation     issue [bsc#1050947]

Bugs fixed :

  - Enable LFS support in 32bit libgcov.a. [bsc#1044016]

  - Bump libffi version in libffi.pc to 3.0.11.

  - Fix libffi issue for armv7l. [bsc#988274]

  - Properly diagnose missing -fsanitize=address support on     ppc64le. [bnc#1028744]

  - Backport patch for PR65612. [bnc#1022062]

  - Fixed DR#1288. [bnc#1011348]

This update was imported from the SUSE:SLE-12:Update update project.

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has gcc packages installed that are affected by a vulnerability:

  - Under certain circumstances, the ix86_expand_builtin     function in i386.c in GNU Compiler Collection (GCC)     version 4.6, 4.7, 4.8, 4.9, 5 before 5.5, and 6 before     6.4 will generate instruction sequences that clobber the     status flag of the RDRAND and RDSEED intrinsics before     it can be read, potentially causing failures of these     instructions to go unreported. This could potentially     lead to less randomness in random number generation.
    (CVE-2017-11671)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 ESM host has packages installed that are affected by a vulnerability as referenced in the USN-5770-1 advisory.

  - Under certain circumstances, the ix86_expand_builtin function in i386.c in GNU Compiler Collection (GCC)     version 4.6, 4.7, 4.8, 4.9, 5 before 5.5, and 6 before 6.4 will generate instruction sequences that     clobber the status flag of the RDRAND and RDSEED intrinsics before it can be read, potentially causing     failures of these instructions to go unreported. This could potentially lead to less randomness in random     number generation. (CVE-2017-11671)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the gcc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The gcc package contains the GNU Compiler Collection     version 4.8.You'll need this package in order to     compile C code.

  - Security fix(es):

  - Under certain circumstances, the ix86_expand_builtin     function in i386.c in GNU Compiler Collection (GCC)     version 4.6, 4.7, 4.8, 4.9, 5 before 5.5, and 6 before     6.4 will generate instruction sequences that clobber     the status flag of the RDRAND and RDSEED intrinsics     before it can be read, potentially causing failures of     these instructions to go unreported. This could     potentially lead to less randomness in random number     generation.(CVE-2017-11671)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for gcc48 fixes the following issues: Security issues fixed :

  - A new option -fstack-clash-protection is now offered,     which mitigates the stack clash type of attacks.
    [bnc#1039513] Future maintenance releases of packages     will be built with this option.

  - CVE-2017-11671: Fixed rdrand/rdseed code generation     issue [bsc#1050947] Bugs fixed :

  - Enable LFS support in 32bit libgcov.a. [bsc#1044016]

  - Bump libffi version in libffi.pc to 3.0.11.

  - Fix libffi issue for armv7l. [bsc#988274]

  - Properly diagnose missing -fsanitize=address support on     ppc64le. [bnc#1028744]

  - Backport patch for PR65612. [bnc#1022062]

  - Fixed DR#1288. [bnc#1011348]

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

From Red Hat Security Advisory 2018:0849 :

An update for gcc is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and Ada 95 GNU, as well as related support libraries.

Security Fix(es) :

* gcc: GCC generates incorrect code for RDRAND/RDSEED intrinsics (CVE-2017-11671)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section.

ID	Name	Product	Family	Published	Updated	Severity
121849	Photon OS 1.0: Gcc PHSA-2018-1.0-0150	Nessus	PhotonOS Local Security Checks	2/7/2019	2/7/2019	medium
109374	CentOS 7 : gcc (CESA-2018:0849)	Nessus	CentOS Local Security Checks	4/27/2018	12/31/2019	medium
102099	Fedora 25 : gcc / gcc-python-plugin / libtool (2017-32a4a94c72)	Nessus	Fedora Local Security Checks	8/2/2017	1/11/2021	medium
118419	EulerOS Virtualization 2.5.0 : gcc (EulerOS-SA-2018-1331)	Nessus	Huawei Local Security Checks	10/26/2018	2/3/2022	medium
109446	Scientific Linux Security Update : gcc on SL7.x x86_64 (20180410)	Nessus	Scientific Linux Local Security Checks	5/1/2018	2/24/2020	medium
104245	openSUSE Security Update : gcc48 (openSUSE-2017-1223)	Nessus	SuSE Local Security Checks	10/30/2017	1/19/2021	medium
127181	NewStart CGSL CORE 5.04 / MAIN 5.04 : gcc Vulnerability (NS-SA-2019-0023)	Nessus	NewStart CGSL Local Security Checks	8/12/2019	1/14/2021	medium
168518	Ubuntu 16.04 ESM : GCC vulnerability (USN-5770-1)	Nessus	Ubuntu Local Security Checks	12/8/2022	7/10/2023	medium
110826	EulerOS 2.0 SP3 : gcc (EulerOS-SA-2018-1174)	Nessus	Huawei Local Security Checks	7/2/2018	2/9/2021	medium
103355	SUSE SLED12 / SLES12 Security Update : gcc48 (SUSE-SU-2017:2526-1)	Nessus	SuSE Local Security Checks	9/20/2017	1/6/2021	medium
109108	Oracle Linux 7 : gcc (ELSA-2018-0849)	Nessus	Oracle Linux Local Security Checks	4/18/2018	9/27/2019	medium
109514	EulerOS 2.0 SP2 : gcc (EulerOS-SA-2018-1116)	Nessus	Huawei Local Security Checks	5/2/2018	2/9/2021	medium
108988	RHEL 7 : gcc (RHSA-2018:0849)	Nessus	Red Hat Local Security Checks	4/11/2018	2/8/2021	medium

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