Debian Security Advisory

DLA-2677-1 libwebp -- LTS security update

Date Reported:
05 Jun 2021
Affected Packages:
libwebp
Vulnerable:
Yes
Security database references:
In Mitre's CVE dictionary: CVE-2018-25009, CVE-2018-25010, CVE-2018-25011, CVE-2018-25012, CVE-2018-25013, CVE-2018-25014, CVE-2020-36328, CVE-2020-36329, CVE-2020-36330, CVE-2020-36331.
More information:

Multiple security issues have been discovered in libwebp

  • CVE-2018-25009

    An out-of-bounds read was found in function WebPMuxCreateInternal. The highest threat from this vulnerability is to data confidentiality and to the service availability.

  • CVE-2018-25010

    An out-of-bounds read was found in function ApplyFilter. The highest threat from this vulnerability is to data confidentiality and to the service availability.

  • CVE-2018-25011

    A heap-based buffer overflow was found in PutLE16(). The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

  • CVE-2018-25012

    An out-of-bounds read was found in function WebPMuxCreateInternal. The highest threat from this vulnerability is to data confidentiality and to the service availability.

  • CVE-2018-25013

    An out-of-bounds read was found in function ShiftBytes. The highest threat from this vulnerability is to data confidentiality and to the service availability.

  • CVE-2018-25014

    An unitialized variable is used in function ReadSymbol. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

  • CVE-2020-36328

    A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

  • CVE-2020-36329

    A use-after-free was found due to a thread being killed too early. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

  • CVE-2020-36330

    An out-of-bounds read was found in function ChunkVerifyAndAssign. The highest threat from this vulnerability is to data confidentiality and to the service availability.

  • CVE-2020-36331

    An out-of-bounds read was found in function ChunkAssignData. The highest threat from this vulnerability is to data confidentiality and to the service availability.

For Debian 9 stretch, these problems have been fixed in version 0.5.2-1+deb9u1.

We recommend that you upgrade your libwebp packages.

For the detailed security status of libwebp please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libwebp

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