An update of the glibc package has been released.

This update for glibc fixes the following issues :

CVE-2020-10029: Fixed a stack corruption from range reduction of pseudo-zero (bsc#1165784)

Use posix_spawn on popen (bsc#1149332, bsc#1176013)

Correct locking and cancellation cleanup in syslog functions (bsc#1172085)

Fixed concurrent changes on nscd aware files (bsc#1171878)

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.

This update for glibc fixes the following issues :

CVE-2020-10029: Fixed a potential overflow in on-stack buffer during range reduction (bsc#1165784).

Fixed an issue where pthread were not always locked correctly (bsc#1164505).

Document mprotect and introduce section on memory protection (bsc#1163184).

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.

This update for glibc fixes the following issues :

  - CVE-2020-10029: Fixed a potential overflow in on-stack     buffer during range reduction (bsc#1165784).&#9; 

  - Fixed an issue where pthread were not always locked     correctly (bsc#1164505).

  - Document mprotect and introduce section on memory     protection (bsc#1163184).

This update was imported from the SUSE:SLE-15:Update update project.

According to the version of the glibc packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - The GNU C Library (aka glibc or libc6) before 2.32     could overflow an on-stack buffer during range     reduction if an input to an 80-bit long double function     contains a non-canonical bit pattern, a seen when     passing a 0x5d414141414141410000 value to sinl on x86     targets. This is related to     sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.(CVE-2020-10029)

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.

According to the version of the glibc packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability :

  - The GNU C Library (aka glibc or libc6) before 2.32     could overflow an on-stack buffer during range     reduction if an input to an 80-bit long double function     contains a non-canonical bit pattern, a seen when     passing a 0x5d414141414141410000 value to sinl on x86     targets. This is related to     sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.(CVE-2020-10029)

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.

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

  - The GNU C Library (aka glibc or libc6) before 2.32     could overflow an on-stack buffer during range     reduction if an input to an 80-bit long double function     contains a non-canonical bit pattern, a seen when     passing a 0x5d414141414141410000 value to sinl on x86     targets. This is related to     sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.(CVE-2020-10029)

  - A use-after-free vulnerability introduced in glibc     upstream version 2.14 was found in the way the tilde     expansion was carried out. Directory paths containing     an initial tilde followed by a valid username were     affected by this issue. A local attacker could exploit     this flaw by creating a specially crafted path that,     when processed by the glob function, would potentially     lead to arbitrary code execution. This was fixed in     version 2.32.(CVE-2020-1752)

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.

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

  - A use-after-free vulnerability introduced in glibc     upstream version 2.14 was found in the way the tilde     expansion was carried out. Directory paths containing     an initial tilde followed by a valid username were     affected by this issue. A local attacker could exploit     this flaw by creating a specially crafted path that,     when processed by the glob function, would potentially     lead to arbitrary code execution. This was fixed in     version 2.32.(CVE-2020-1752)

  - The GNU C Library (aka glibc or libc6) before 2.32     could overflow an on-stack buffer during range     reduction if an input to an 80-bit long double function     contains a non-canonical bit pattern, a seen when     passing a 0x5d414141414141410000 value to sinl on x86     targets. This is related to     sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.(CVE-2020-10029)

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.

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

  - The GNU C Library (aka glibc or libc6) before 2.32     could overflow an on-stack buffer during range     reduction if an input to an 80-bit long double function     contains a non-canonical bit pattern, a seen when     passing a 0x5d414141414141410000 value to sinl on x86     targets. This is related to     sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.(CVE-2020-10029)

  - A use-after-free vulnerability introduced in glibc     upstream version 2.14 was found in the way the tilde     expansion was carried out. Directory paths containing     an initial tilde followed by a valid username were     affected by this issue. A local attacker could exploit     this flaw by creating a specially crafted path that,     when processed by the glob function, would potentially     lead to arbitrary code execution. This was fixed in     version 2.32.(CVE-2020-1752)

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 glibc fixes the following issues :

CVE-2020-1752: Fixed a use after free in glob which could have allowed a local attacker to create a specially crafted path that, when processed by the glob function, could potentially have led to arbitrary code execution (bsc#1167631).

CVE-2020-1751: Fixed an array overflow in backtrace for PowerPC (bsc#1158996).

CVE-2020-10029: Fixed a stack-based buffer overflow during range reduction (bsc#1165784).

Use 'posix_spawn' on popen preventing crash caused by 'subprocess'.
(bsc#1149332, BZ #22834)

Fix handling of needles crossing a page, preventing incorrect results to return during the cross page boundary search. (bsc#1157893, BZ #25226)

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.

The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the SLSA-2021:0348-1 advisory.

  - glibc: buffer over-read in iconv when processing invalid multi-byte input sequences in the EUC-KR encoding     (CVE-2019-25013)

  - glibc: stack corruption from crafted input in cosl, sinl, sincosl, and tanl functions (CVE-2020-10029)

  - glibc: stack-based buffer overflow if the input to any of the printf family of functions is an 80-bit long     double with a non-canonical bit pattern (CVE-2020-29573)

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

This update incorporates fixes from the upstream glibc 2.30 stable release branch, including 3 fixes for medium severity security vulnerabilities. (CVE-2020-10029, CVE-2020-1752, CVE-2020-1751)

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.

This update incorporates fixes from the upstream glibc 2.29 stable release branch, including 3 fixes for medium severity security vulnerabilities. (CVE-2020-10029, CVE-2020-1752, CVE-2020-1751)

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.

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:4444 advisory.

  - glibc: stack corruption from crafted input in cosl, sinl, sincosl, and tanl functions (CVE-2020-10029)

  - glibc: array overflow in backtrace functions for powerpc (CVE-2020-1751)

  - glibc: use-after-free in glob() function when expanding ~user (CVE-2020-1752)

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

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0348 advisory.

  - glibc: buffer over-read in iconv when processing invalid multi-byte input sequences in the EUC-KR encoding     (CVE-2019-25013)

  - glibc: stack corruption from crafted input in cosl, sinl, sincosl, and tanl functions (CVE-2020-10029)

  - glibc: stack-based buffer overflow if the input to any of the printf family of functions is an 80-bit long     double with a non-canonical bit pattern (CVE-2020-29573)

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

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:0348 advisory.

  - glibc: buffer over-read in iconv when processing invalid multi-byte input sequences in the EUC-KR encoding     (CVE-2019-25013)

  - glibc: stack corruption from crafted input in cosl, sinl, sincosl, and tanl functions (CVE-2020-10029)

  - glibc: stack-based buffer overflow if the input to any of the printf family of functions is an 80-bit long     double with a non-canonical bit pattern (CVE-2020-29573)

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

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-0348 advisory.

  - The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range     reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when     passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to     sysdeps/ieee754/ldbl-96/e_rem_pio2l.c. (CVE-2020-10029)

  - sysdeps/i386/ldbl2mpn.c in the GNU C Library (aka glibc or libc6) before 2.23 on x86 targets has a stack-     based buffer overflow if the input to any of the printf family of functions is an 80-bit long double with     a non-canonical bit pattern, as seen when passing a \x00\x04\x00\x00\x00\x00\x00\x00\x00\x04 value to     sprintf. NOTE: the issue does not affect glibc by default in 2016 or later (i.e., 2.23 or later) because     of commits made in 2015 for inlining of C99 math functions through use of GCC built-ins. In other words,     the reference to 2.23 is intentional despite the mention of Fixed for glibc 2.33 in the 26649 reference.
    (CVE-2020-29573)

  - The iconv feature in the GNU C Library (aka glibc or libc6) through 2.32, when processing invalid multi-     byte input sequences in the EUC-KR encoding, may have a buffer over-read. (CVE-2019-25013)

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

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-4444 advisory.

  - A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde     expansion was carried out. Directory paths containing an initial tilde followed by a valid username were     affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path     that, when processed by the glob function, would potentially lead to arbitrary code execution. This was     fixed in version 2.32. (CVE-2020-1752)

  - An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on     PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the     frame address, resulting in a denial of service or potential code execution. The highest threat from this     vulnerability is to system availability. (CVE-2020-1751)

  - The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range     reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when     passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to     sysdeps/ieee754/ldbl-96/e_rem_pio2l.c. (CVE-2020-10029)

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4444 advisory.

  - glibc: stack corruption from crafted input in cosl, sinl, sincosl, and tanl functions (CVE-2020-10029)

  - glibc: array overflow in backtrace functions for powerpc (CVE-2020-1751)

  - glibc: use-after-free in glob() function when expanding ~user (CVE-2020-1752)

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

The remote host is affected by the vulnerability described in GLSA-202006-04 (glibc: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in glibc. Please review       the CVE identifiers referenced below for details.
  Impact :

    Please review the referenced CVE identifiers for details.
  Workaround :

    There is no known workaround at this time.

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

  - The glibc package contains standard libraries which are     used by multiple programs on the system. In order to     save disk space and memory, as well as to make     upgrading easier, common system code is kept in one     place and shared between programs. This particular     package contains the most important sets of shared     libraries: the standard C library and the standard math     library. Without these two libraries, a Linux system     will not function.Security Fix(es):Stack-based buffer     overflow in the getaddrinfo function in     sysdeps/posix/getaddrinfo.c in the GNU C Library (aka     glibc or libc6) allows remote attackers to cause a     denial of service (crash) via vectors involving hostent     conversion. NOTE: this vulnerability exists because of     an incomplete fix for CVE-2013-4458.(CVE-2016-3706)In     the GNU C Library (aka glibc or libc6) through 2.29,     check_dst_limits_calc_pos_1 in posix/regexec.c has     Uncontrolled Recursion, as demonstrated by     '(|)(\\1\\1)*' in grep, a different issue than     CVE-2018-20796. NOTE: the software maintainer disputes     that this is a vulnerability because the behavior     occurs only with a crafted pattern.(CVE-2019-9192)In     the GNU C Library (aka glibc or libc6) through 2.29,     check_dst_limits_calc_pos_1 in posix/regexec.c has     Uncontrolled Recursion, as demonstrated by     '(\227|)(\\1\\1|t1|\\\2537)+' in     grep.(CVE-2018-20796)GNU Libc current is affected by:
    Re-mapping current loaded library with malicious ELF     file. The impact is: In worst case attacker may     evaluate privileges. The component is: libld. The     attack vector is: Attacker sends 2 ELF files to victim     and asks to run ldd on it. ldd execute     code.(CVE-2019-1010023)A use-after-free vulnerability     introduced in glibc upstream version 2.14 was found in     the way the tilde expansion was carried out. Directory     paths containing an initial tilde followed by a valid     username were affected by this issue. A local attacker     could exploit this flaw by creating a specially crafted     path that, when processed by the glob function, would     potentially lead to arbitrary code execution. This was     fixed in version 2.32.(CVE-2020-1752)The GNU C Library     (aka glibc or libc6) before 2.32 could overflow an     on-stack buffer during range reduction if an input to     an 80-bit long double function contains a non-canonical     bit pattern, a seen when passing a     0x5d414141414141410000 value to sinl on x86 targets.
    This is related to     sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.(CVE-2020-10029)

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.

Florian Weimer discovered that the GNU C Library incorrectly handled certain memory operations. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2017-12133) It was discovered that the GNU C Library incorrectly handled certain SSE2-optimized memmove operations. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2017-18269) It was discovered that the GNU C Library incorrectly handled certain pathname operations. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-11236) It was discovered that the GNU C Library incorrectly handled certain AVX-512-optimized mempcpy operations. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-11237) It was discovered that the GNU C Library incorrectly handled certain hostname loookups. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS.
(CVE-2018-19591) Jakub Wilk discovered that the GNU C Library incorrectly handled certain memalign functions. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2018-6485) It was discovered that the GNU C Library incorrectly ignored the LD_PREFER_MAP_32BIT_EXEC environment variable after security transitions. A local attacker could use this issue to bypass ASLR restrictions. (CVE-2019-19126) It was discovered that the GNU C Library incorrectly handled certain regular expressions. A remote attacker could possibly use this issue to cause the GNU C Library to crash, resulting in a denial of service.
This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
(CVE-2019-9169) It was discovered that the GNU C Library incorrectly handled certain bit patterns. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2020-10029) It was discovered that the GNU C Library incorrectly handled certain signal trampolines on PowerPC. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-1751) It was discovered that the GNU C Library incorrectly handled tilde expansion. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-1752).

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

ID	Name	Product	Family	Published	Updated	Severity
137643	Photon OS 1.0: Glibc PHSA-2020-1.0-0300	Nessus	PhotonOS Local Security Checks	2020/06/18	2020/06/22	low
143758	SUSE SLES12 Security Update : glibc (SUSE-SU-2020:3024-1)	Nessus	SuSE Local Security Checks	2020/12/09	2021/01/13	low
134621	SUSE SLED15 / SLES15 Security Update : glibc (SUSE-SU-2020:0668-1)	Nessus	SuSE Local Security Checks	2020/03/16	2021/01/13	low
134935	openSUSE Security Update : glibc (openSUSE-2020-381)	Nessus	SuSE Local Security Checks	2020/03/26	2020/03/30	low
134780	EulerOS 2.0 SP8 : glibc (EulerOS-SA-2020-1288)	Nessus	Huawei Local Security Checks	2020/03/23	2021/01/06	low
135156	EulerOS Virtualization for ARM 64 3.0.6.0 : glibc (EulerOS-SA-2020-1369)	Nessus	Huawei Local Security Checks	2020/04/02	2021/01/06	low
140898	EulerOS 2.0 SP3 : glibc (EulerOS-SA-2020-2131)	Nessus	Huawei Local Security Checks	2020/09/28	2021/01/06	low
136569	Photon OS 2.0: Glibc PHSA-2020-2.0-0242	Nessus	PhotonOS Local Security Checks	2020/05/13	2020/05/15	medium
137017	EulerOS 2.0 SP5 : glibc (EulerOS-SA-2020-1599)	Nessus	Huawei Local Security Checks	2020/06/02	2021/01/06	low
137931	EulerOS Virtualization 3.0.6.0 : glibc (EulerOS-SA-2020-1712)	Nessus	Huawei Local Security Checks	2020/07/01	2021/01/06	low
135165	SUSE SLES12 Security Update : glibc (SUSE-SU-2020:0832-1)	Nessus	SuSE Local Security Checks	2020/04/02	2021/01/13	medium
146062	Scientific Linux Security Update : glibc on SL7.x i686/x86_64 (2021:0348)	Nessus	Scientific Linux Local Security Checks	2021/02/02	2021/02/05	high
135209	Fedora 31 : glibc (2020-244efc27af)	Nessus	Fedora Local Security Checks	2020/04/06	2020/05/07	medium
135372	Fedora 30 : glibc (2020-7f625c5ea8)	Nessus	Fedora Local Security Checks	2020/04/10	2020/05/07	medium
145977	CentOS 8 : glibc (CESA-2020:4444)	Nessus	CentOS Local Security Checks	2021/02/01	2021/02/03	medium
146081	RHEL 7 : glibc (RHSA-2021:0348)	Nessus	Red Hat Local Security Checks	2021/02/03	2021/02/05	high
146097	CentOS 7 : glibc (CESA-2021:0348)	Nessus	CentOS Local Security Checks	2021/02/03	2021/02/05	high
146101	Oracle Linux 7 : glibc (ELSA-2021-0348)	Nessus	Oracle Linux Local Security Checks	2021/02/04	2021/02/05	high
142780	Oracle Linux 8 : glibc (ELSA-2020-4444)	Nessus	Oracle Linux Local Security Checks	2020/11/12	2020/11/13	medium
142396	RHEL 8 : glibc (RHSA-2020:4444)	Nessus	Red Hat Local Security Checks	2020/11/04	2020/11/19	medium
137441	GLSA-202006-04 : glibc: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2020/06/17	2020/06/22	high
137509	EulerOS 2.0 SP2 : glibc (EulerOS-SA-2020-1667)	Nessus	Huawei Local Security Checks	2020/06/17	2021/01/06	medium
138166	Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : GNU C Library vulnerabilities (USN-4416-1)	Nessus	Ubuntu Local Security Checks	2020/07/07	2020/12/07	high

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