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AUSCERT External Security Bulletin Redistribution
ESB-2019.2737
[DLA 1860-1] libxslt security update
23 July 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: libxslt
Publisher: Debian
Operating System: Debian GNU/Linux 8
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-13118 CVE-2019-13117 CVE-2016-4610
CVE-2016-4609
Reference: ESB-2019.2660
Original Bulletin:
https://lists.debian.org/debian-lts-announce/2019/07/msg00020.html
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Package : libxslt
Version : 1.1.28-2+deb8u5
CVE ID : CVE-2016-4609 CVE-2016-4610 CVE-2019-13117
CVE-2019-13118
Debian Bug : 932321 932320
Several vulnerabilities were found in libxslt the XSLT 1.0 processing
library.
CVE-2016-4610
Invalid memory access leading to DoS at exsltDynMapFunction. libxslt
allows remote attackers to cause a denial of service (memory
corruption) or possibly have unspecified other impact via unknown
vectors.
CVE-2016-4609
Out-of-bounds read at xmlGetLineNoInternal()
libxslt allows remote attackers to cause a denial of service (memory
corruption) or possibly have unspecified other impact via unknown
vectors.
CVE-2019-13117
An xsl:number with certain format strings could lead to an
uninitialized read in xsltNumberFormatInsertNumbers. This could
allow an attacker to discern whether a byte on the stack contains
the characters A, a, I, i, or 0, or any other character.
CVE-2019-13118
A type holding grouping characters of an xsl:number instruction was
too narrow and an invalid character/length combination could be
passed to xsltNumberFormatDecimal, leading to a read of
uninitialized stack data.
For Debian 8 "Jessie", these problems have been fixed in version
1.1.28-2+deb8u5.
We recommend that you upgrade your libxslt packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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