Package "glibc"

Name: glibc


This package is just an umbrella for a group of other packages, it has no description.
Description samples from packages in group:

  • GNU C Library: Documentation
  • GNU C Library: Binaries
  • GNU C Library: Development binaries
  • GNU C Library: Shared libraries

Latest version: 2.23-0ubuntu11.3
Release: xenial (16.04)
Level: updates
Repository: main


Other versions of "glibc" in Xenial

Repository Area Version
base main 2.23-0ubuntu3
base universe 2.23-0ubuntu3
security universe 2.23-0ubuntu11.3
security main 2.23-0ubuntu11.3
updates universe 2.23-0ubuntu11.3

Packages in group

Deleted packages are displayed in grey.


Version: 2.23-0ubuntu11.3 2021-05-13 21:06:23 UTC

  glibc (2.23-0ubuntu11.3) xenial-security; urgency=medium

  * SECURITY UPDATE: DoS via regular expression
    - debian/patches/CVE-2009-5155.patch: diagnose invalid back-reference
      in posix/regcomp.c, remove invalid test in posix/PCRE.tests.
    - CVE-2009-5155
  * SECURITY UPDATE: signed comparison vulnerability exists in ARM memcpy
    - debian/patches/CVE-2020-6096-1.patch: fix multiarch memcpy for
      negative length in sysdeps/arm/armv7/multiarch/memcpy_impl.S.
    - debian/patches/CVE-2020-6096-2.patch: fix memcpy and memmove for
      negative length in sysdeps/arm/memcpy.S, sysdeps/arm/memmove.S.
    - CVE-2020-6096

 -- Marc Deslauriers <email address hidden> Tue, 20 Apr 2021 14:52:26 -0400

Source diff to previous version
CVE-2009-5155 In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a den
CVE-2020-6096 An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000. Calling memcpy() (on ARMv7 targets

Version: 2.23-0ubuntu11.2 2020-07-06 21:06:21 UTC

  glibc (2.23-0ubuntu11.2) xenial-security; urgency=medium

  * SECURITY UPDATE: Use-after-free in clntudp_call
    - debian/patches/CVE-2017-12133.patch: avoid use-after-free read access
      in sunrpc/Makefile, sunrpc/clnt_udp.c, sunrpc/tst-udp-error.c.
    - CVE-2017-12133
  * SECURITY UPDATE: overlap in SSE2-optimized memmove implementation
    - debian/patches/CVE-2017-18269.patch: fixed branch conditions in
    - CVE-2017-18269
  * SECURITY UPDATE: integer overflow in posix_memalign
    - debian/patches/CVE-2018-6485.patch: fix integer overflows in internal
      memalign and malloc in malloc/Makefile, malloc/malloc.c,
    - CVE-2018-6485
  * SECURITY UPDATE: integer overflow in realpath
    - debian/patches/any/CVE-2018-11236.patch: fix path length overflow in
      realpath in stdlib/Makefile, stdlib/canonicalize.c,
    - CVE-2018-11236
  * SECURITY UPDATE: buffer overflow in __mempcpy_avx512_no_vzeroupper
    - debian/patches/any/CVE-2018-11237.patch: don't write beyond
      destination in string/test-mempcpy.c,
    - CVE-2018-11237
  * SECURITY UPDATE: heap over-read via regular-expression match
    - debian/patches/any/CVE-2019-9169.patch: fix read overrun in
    - CVE-2019-9169
    - debian/patches/any/CVE-2019-19126.patch: check __libc_enable_secure
      before honoring LD_PREFER_MAP_32BIT_EXEC in
    - CVE-2019-19126
  * SECURITY UPDATE: out-of-bounds write on PowerPC
    - debian/patches/any/CVE-2020-1751.patch: fix array overflow in
      backtrace on PowerPC in debug/tst-backtrace5.c,
    - CVE-2020-1751
  * SECURITY UPDATE: use-after-free via tilde expansion
    - debian/patches/any/CVE-2020-1752.patch: fix use-after-free in glob
      when expanding ~user in posix/glob.c.
    - CVE-2020-1752
  * SECURITY UPDATE: stack overflow via 80-bit long double function
    - debian/patches/any/CVE-2020-10029.patch: avoid ldbl-96 stack
      corruption from range reduction of pseudo-zero in
    - CVE-2020-10029

 -- Marc Deslauriers <email address hidden> Thu, 04 Jun 2020 13:56:35 -0400

Source diff to previous version
CVE-2017-12133 Use-after-free vulnerability in the clntudp_call function in sunrpc/clnt_udp.c in the GNU C Library (aka glibc or libc6) before 2.26 allows remote at
CVE-2017-18269 An SSE2-optimized memmove implementation for i386 in sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S in the GNU C Library (aka glibc or libc6) 2.
CVE-2018-6485 An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier coul
CVE-2018-11236 stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath functi
CVE-2018-11237 An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the targ
CVE-2019-9169 In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer over-read via an attempted case-
CVE-2019-19126 On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during progra
CVE-2020-1751 An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function
CVE-2020-1752 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 co
CVE-2020-10029 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 func

Version: 2.23-0ubuntu11 2019-02-20 17:06:39 UTC

  glibc (2.23-0ubuntu11) xenial; urgency=medium

  * debian/patches/ubuntu/xsave-part1.diff and
    debian/patches/ubuntu/xsave-part2.diff: Fix a serious performance
    regression when mixing SSE and AVX code on certain processors.
    The patches are from the upstream 2.23 stable branch. (LP: #1663280)

 -- Daniel Axtens <email address hidden> Thu, 04 Oct 2018 10:29:55 +1000

Source diff to previous version
1663280 Serious performance degradation of math functions

Version: 2.23-0ubuntu10 2018-01-17 14:06:45 UTC

  glibc (2.23-0ubuntu10) xenial-security; urgency=medium

  * SECURITY UPDATE: Memory leak in dynamic loader (ld.so)
    - debian/patches/any/cvs-compute-correct-array-size-in-_dl_init_paths.diff:
      Compute correct array size in _dl_init_paths
    - CVE-2017-1000408
  * SECURITY UPDATE: Buffer overflow in dynamic loader (ld.so)
    - debian/patches/any/cvs-count-components-of-expanded-path-in-_dl_init_paths.diff:
      Count components of the expanded path in _dl_init_path
    - CVE-2017-1000409
  * SECURITY UPDATE: One-byte overflow in glob
    - debian/patches/any/cvs-fix-one-byte-glob-overflow.diff: Fix one-byte
      overflow in glob
    - CVE-2017-15670
  * SECURITY UPDATE: Buffer overflow in glob
    - debian/patches/any/cvs-fix-glob-buffer-overflow.diff: Fix buffer overflow
      during GLOB_TILDE unescaping
    - CVE-2017-15804
  * SECURITY UPDATE: Local privilege escalation via mishandled RPATH / RUNPATH
    - debian/patches/any/cvs-elf-check-for-empty-tokens.diff: elf: Check for
      empty tokens before dynamic string token expansion
    - CVE-2017-16997
  * SECURITY UPDATE: Buffer underflow in realpath()
    - debian/patches/any/cvs-make-getcwd-fail-if-path-is-no-absolute.diff:
      Make getcwd(3) fail if it cannot obtain an absolute path
    - CVE-2018-1000001

 -- Chris Coulson <email address hidden> Sun, 14 Jan 2018 20:06:26 +0000

Source diff to previous version

Version: 2.23-0ubuntu9 2017-06-19 19:06:47 UTC

  glibc (2.23-0ubuntu9) xenial-security; urgency=medium

    - debian/patches/any/CVE-2017-1000366.patch: Completely ignore
      LD_LIBRARY_PATH for AT_SECURE=1 programs
    - CVE-2017-1000366
  * SECURITY UPDATE: LD_PRELOAD stack corruption
    - debian/patches/any/upstream-harden-rtld-Reject-overly-long-LD_PRELOAD.patch:
      Reject overly long names or names containing directories in
      LD_PRELOAD for AT_SECURE=1 programs.
  * debian/patches/any/cvs-harden-glibc-malloc-metadata.patch: add
    additional consistency check for 1-byte overflows
  * debian/patches/any/cvs-harden-ignore-LD_HWCAP_MASK.patch: ignore
    LD_HWCAP_MASK for AT_SECURE=1 programs

 -- Steve Beattie <email address hidden> Fri, 16 Jun 2017 12:04:15 -0700

CVE-2017-1000 RESERVED

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