CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
91.0%
Debian LTS Advisory DLA-2369-1 [email protected]
https://www.debian.org/lts/security/ Markus Koschany
September 09, 2020 https://wiki.debian.org/LTS
Package : libxml2
Version : 2.9.4+dfsg1-2.2+deb9u3
CVE ID : CVE-2017-8872 CVE-2017-18258 CVE-2018-14404
CVE-2018-14567 CVE-2019-19956 CVE-2019-20388
CVE-2020-7595 CVE-2020-24977
Debian Bug : 895245 862450 949583 969529 949582
Several security vulnerabilities were corrected in libxml2, the GNOME
XML library.
CVE-2017-8872
Global buffer-overflow in the htmlParseTryOrFinish function.
CVE-2017-18258
The xz_head function in libxml2 allows remote attackers to cause a
denial of service (memory consumption) via a crafted LZMA file,
because the decoder functionality does not restrict memory usage to
what is required for a legitimate file.
CVE-2018-14404
A NULL pointer dereference vulnerability exists in the
xpath.c:xmlXPathCompOpEval() function of libxml2 when parsing an
invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case.
Applications processing untrusted XSL format inputs may be
vulnerable to a denial of service attack.
CVE-2018-14567
If the option --with-lzma is used, allows remote attackers to cause
a denial of service (infinite loop) via a crafted XML file.
CVE-2019-19956
The xmlParseBalancedChunkMemoryRecover function has a memory leak
related to newDoc->oldNs.
CVE-2019-20388
A memory leak was found in the xmlSchemaValidateStream function of
libxml2. Applications that use this library may be vulnerable to
memory not being freed leading to a denial of service.
CVE-2020-7595
Infinite loop in xmlStringLenDecodeEntities can cause a denial of
service.
CVE-2020-24977
Out-of-bounds read restricted to xmllint --htmlout.
For Debian 9 stretch, these problems have been fixed in version
2.9.4+dfsg1-2.2+deb9u3.
We recommend that you upgrade your libxml2 packages.
For the detailed security status of libxml2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libxml2
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
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 8 | amd64 | libxml2-dbg | < 2.9.1+dfsg1-5+deb8u7 | libxml2-dbg_2.9.1+dfsg1-5+deb8u7_amd64.deb |
Debian | 10 | mips64el | python3-libxml2-dbg | < 2.9.4+dfsg1-7+deb10u1 | python3-libxml2-dbg_2.9.4+dfsg1-7+deb10u1_mips64el.deb |
Debian | 10 | s390x | libxml2-utils | < 2.9.4+dfsg1-7+deb10u1 | libxml2-utils_2.9.4+dfsg1-7+deb10u1_s390x.deb |
Debian | 9 | amd64 | libxml2-utils-dbg | < 2.9.4+dfsg1-2.2+deb9u3 | libxml2-utils-dbg_2.9.4+dfsg1-2.2+deb9u3_amd64.deb |
Debian | 9 | armel | libxml2-utils | < 2.9.4+dfsg1-2.2+deb9u3 | libxml2-utils_2.9.4+dfsg1-2.2+deb9u3_armel.deb |
Debian | 10 | mipsel | libxml2-dev | < 2.9.4+dfsg1-7+deb10u1 | libxml2-dev_2.9.4+dfsg1-7+deb10u1_mipsel.deb |
Debian | 9 | armel | libxml2-dev | < 2.9.4+dfsg1-2.2+deb9u3 | libxml2-dev_2.9.4+dfsg1-2.2+deb9u3_armel.deb |
Debian | 10 | amd64 | libxml2 | < 2.9.4+dfsg1-7+deb10u1 | libxml2_2.9.4+dfsg1-7+deb10u1_amd64.deb |
Debian | 8 | armhf | libxml2-dev | < 2.9.1+dfsg1-5+deb8u7 | libxml2-dev_2.9.1+dfsg1-5+deb8u7_armhf.deb |
Debian | 10 | armel | libxml2 | < 2.9.4+dfsg1-7+deb10u1 | libxml2_2.9.4+dfsg1-7+deb10u1_armel.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
91.0%