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Package "libc6"

Name: libc6

Description:

GNU C Library: Shared libraries
Latest version: 2.35-0ubuntu3.8
Release: jammy (22.04)
Level: security
Repository: main
Head package: glibc
Homepage: https://www.gnu.org/software/libc/libc.html

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Other versions of "libc6" in Jammy

Repository Area Version
base main 2.35-0ubuntu3
updates main 2.35-0ubuntu3.8

Changelog

Version: 2.35-0ubuntu3.8 2024-05-29 18:08:17 UTC

  glibc (2.35-0ubuntu3.8) jammy-security; urgency=medium

  * SECURITY UPDATE: Stack-based buffer overflow
    - debian/patches/CVE-2024-33599.patch: CVE-2024-33599: nscd: Stack-
      based buffer overflow in netgroup cache.
    - CVE-2024-33599
  * SECURITY UPDATE: Null pointer
    - debian/patches/CVE-2024-33600_1.patch: CVE-2024-33600: nscd: Avoid
      null pointer crashes after notfound response.
    - debian/patches/CVE-2024-33600_2.patch: CVE-2024-33600: nscd: Do
      not send missing not-found response in addgetnetgrentX.
    - CVE-2024-33600
  * SECURITY UPDATE: Memory corruption
    - debian/patches/CVE-2024-33601_33602.patch: CVE-2024-33601, CVE-
      2024-33602: nscd: netgroup: Use two buffers in addgetnetgrentX.
    - CVE-2024-33601
    - CVE-2024-33602

 -- Paulo Flabiano Smorigo <email address hidden> Mon, 06 May 2024 17:34:28 -0300
Source diff to previous version
CVE-2024-33599 nscd: Stack-based buffer overflow in netgroup cache If the Name Service Cache Daemon's (nscd) fixed size cache is exhausted by client requests then
CVE-2024-33600 nscd: Null pointer crashes after notfound response If the Name Service Cache Daemon's (nscd) cache fails to add a not-found netgroup response to the
CVE-2024-33601 nscd: netgroup cache may terminate daemon on memory allocation failure The Name Service Cache Daemon's (nscd) netgroup cache uses xmalloc or xreallo
CVE-2024-33602 nscd: netgroup cache assumes NSS callback uses in-buffer strings The Name Service Cache Daemon's (nscd) netgroup cache can corrupt memory when the N

Version: 2.35-0ubuntu3.7 2024-04-18 14:06:54 UTC

  glibc (2.35-0ubuntu3.7) jammy-security; urgency=medium

  * SECURITY UPDATE: OOB write in iconv plugin ISO-2022-CN-EXT
    - debian/patches/any/CVE-2024-2961.patch: fix out-of-bound writes when
      writing escape sequence in iconvdata/Makefile,
      iconvdata/iso-2022-cn-ext.c, iconvdata/tst-iconv-iso-2022-cn-ext.c.
    - CVE-2024-2961

 -- Marc Deslauriers <email address hidden> Tue, 16 Apr 2024 09:40:36 -0400
Source diff to previous version
CVE-2024-2961 The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to it by up to 4 bytes when converting string

Version: 2.35-0ubuntu3.6 2024-01-10 13:12:00 UTC

  glibc (2.35-0ubuntu3.6) jammy-security; urgency=medium

  * SECURITY REGRESSION: incorrect processing of address family with nscd
    (LP: #2047155)
    - debian/patches/lp2047155/lp2047155-refactor-bits-for-readability.patch:
      split out line processing for 'label', 'precedence' and 'scopev4' into
      separate functions (gaiconf_inet).
    - debian/patches/lp2047155/lp2047155-avoid-if-to-else-jump.patch: clean up
      another antipattern where code flows from an if condition to its else
      counterpart with a goto (gai_init).
    - debian/patches/lp2047155/lp2047155-refactor-code-for-readability.patch:
      refactor the code and make it easier to follow by removing the confusing
      close_retry goto jump (getaddrinfo).
    - debian/patches/lp2047155/
      lp2047155-get-nscd-addresses-fix-subscript-typos.patch: fix the
      subscript on air->family, which was accidentally set to 'count' when it
      should have remained as 'i' (get_nscd_addresses).
    - CVE-2023-4806

 -- Camila Camargo de Matos <email address hidden> Tue, 02 Jan 2024 10:22:42 -0300
Source diff to previous version
2047155 \
CVE-2023-4806 A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an applicatio

Version: 2.35-0ubuntu3.5 2023-12-07 18:07:04 UTC

  glibc (2.35-0ubuntu3.5) jammy-security; urgency=medium

  * SECURITY UPDATE: use-after-free through getcanonname_r plugin call
    - debian/patches/any/CVE-2023-4806-pre1.patch: sort tests and
      tests-container and put one test per line (nss).
    - debian/patches/any/CVE-2023-4806-pre2.patch: simplify canon name
      resolution (gaih_inet).
    - debian/patches/any/CVE-2023-4806-pre3.patch: fix leak with AI_ALL
      (gaih_inet).
    - debian/patches/any/CVE-2023-4806-pre4.patch: simplify service resolution
      (gaih_inet).
    - debian/patches/any/CVE-2023-4806-pre5.patch: make numeric lookup a
      separate routine (gaih_inet).
    - debian/patches/any/CVE-2023-4806-pre6.patch: split simple gethostbyname
      into its own function (gaih_inet).
    - debian/patches/any/CVE-2023-4806-pre7.patch: split nscd lookup code into
      its own function (gaih_inet).
    - debian/patches/any/CVE-2023-4806-pre8.patch: separate nss lookup loop
      into its own function (gaih_inet).
    - debian/patches/any/CVE-2023-4806-pre9.patch: make gethosts into a
      function (gaih_inet).
    - debian/patches/any/CVE-2023-4806-pre10.patch: split loopback lookup into
      its own function (gaih_inet).
    - debian/patches/any/CVE-2023-4806-pre11.patch: split result generation
      into its own function (gaih_inet).
    - debian/patches/any/CVE-2023-4806-pre12.patch: return EAI_MEMORY on
      allocation failure (gethosts).
    - debian/patches/any/CVE-2023-4806.patch: copy h_name over and free it at
      the end (getaddrinfo).
    - CVE-2023-4806
  * SECURITY UPDATE: use-after-free in gaih_inet function
    - debian/patches/any/CVE-2023-4813.patch: simplify allocations and fix
      merge and continue actions.
    - CVE-2023-4813
  * SECURITY UPDATE: memory leak in getaddrinfo
    - debian/patches/any/CVE-2023-5156.patch: fix leak in getaddrinfo
      introduced by the fix for CVE-2023-4806.
    - CVE-2023-5156

 -- Camila Camargo de Matos <email address hidden> Wed, 22 Nov 2023 10:18:45 -0300
Source diff to previous version
CVE-2023-4806 A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an applicatio
CVE-2023-4813 A flaw was found in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. Th
CVE-2023-5156 A flaw was found in the GNU C Library. A recent fix for CVE-2023-4806 introduced the potential for a memory leak, which may result in an application

Version: 2.35-0ubuntu3.4 2023-10-03 20:11:55 UTC

  glibc (2.35-0ubuntu3.4) jammy-security; urgency=medium

  * SECURITY UPDATE: privilege escalation in ld.so
    - debian/patches/any/CVE-2023-4911.patch: terminate immediately if end
      of input is reached in elf/dl-tunables.c.
    - CVE-2023-4911

 -- Marc Deslauriers <email address hidden> Mon, 25 Sep 2023 10:45:50 -0400
CVE-2023-4911 A buffer overflow was discovered in the GNU C Library's dynamic loader ...


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