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Package "libtar-dev"

Name: libtar-dev

Description:

C library for manipulating tar archives (development files)
Latest version: 1.2.20-8ubuntu0.20.04.1
Release: focal (20.04)
Level: updates
Repository: universe
Head package: libtar
Homepage: http://repo.or.cz/w/libtar.git

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Repository Area Version
base universe 1.2.20-8
security universe 1.2.20-8ubuntu0.20.04.1

Changelog

Version: 1.2.20-8ubuntu0.20.04.1 2025-03-31 22:06:59 UTC

  libtar (1.2.20-8ubuntu0.20.04.1) focal-security; urgency=medium

  * SECURITY UPDATE: Out of bounds read when header struct is 0
    - debian/patches/CVE-2021-33643_33644.patch: Ensure that sz is
    greater than 0.
    - CVE-2021-33643
    - CVE-2021-33644
  * SECURITY UPDATE: Memory leak from failing to free
    t->th_buf.gnu_longlink
    - debian/patches/CVE-2021-33645_33646.patch: fix memory leak
    - CVE-2021-33645
    - CVE-2021-33646

 -- John Breton <email address hidden> Mon, 31 Mar 2025 07:43:08 -0400
CVE-2021-33643 An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longl
CVE-2021-33644 An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longn
CVE-2021-33645 The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak.
CVE-2021-33646 The th_read() function doesn’t free a variable t->th_buf.gnu_longname after allocating memory, which may cause a memory leak.


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