Sourced from The GitHub Security Advisory Database.

Update packaged dependency libxml2 from 2.9.10 to 2.9.12

Summary

Nokogiri v1.11.4 updates the vendored libxml2 from v2.9.10 to v2.9.12 which addresses:

• CVE-2019-20388 (Medium severity)
• CVE-2020-24977 (Medium severity)
• CVE-2021-3517 (Medium severity)
• CVE-2021-3518 (Medium severity)
• CVE-2021-3537 (Low severity)
• CVE-2021-3541 (Low severity)

Note that two additional CVEs were addressed upstream but are not relevant to this release. CVE-2021-3516 via xmllint is not present in Nokogiri, and CVE-2020-7595 has been patched in Nokogiri since v1.10.8 (see #1992).

Please note that this advisory only applies to the CRuby implementation of Nokogiri < 1.11.4, and only if the packaged version of libxml2 is being used. If you've overridden defaults at installation time to use system libraries instead of packaged libraries, you should instead pay attention to your distro's libxml2 release announcements.

Mitigation

Upgrade to Nokogiri >= 1.11.4.

... (truncated)

Affected versions: < 1.11.4

Sourced from The Ruby Advisory Database.

Update packaged dependency libxml2 from 2.9.10 to 2.9.12

Summary

Nokogiri v1.11.4 updates the vendored libxml2 from v2.9.10 to v2.9.12 which addresses:

• CVE-2019-20388 (Medium severity)
• CVE-2020-24977 (Medium severity)
• CVE-2021-3517 (Medium severity)
• CVE-2021-3518 (Medium severity)
• CVE-2021-3537 (Low severity)
• CVE-2021-3541 (Low severity)

Note that two additional CVEs were addressed upstream but are not relevant to this release. CVE-2021-3516 via xmllint is not present in Nokogiri, and CVE-2020-7595 has been patched in Nokogiri since v1.10.8 (see #1992).

Please note that this advisory only applies to the CRuby implementation of Nokogiri < 1.11.4, and only if the packaged version of libxml2 is being used. If you've overridden defaults at installation time to use system libraries instead of packaged libraries, you should instead pay attention to your distro's libxml2 release announcements.

Mitigation

Upgrade to Nokogiri >= 1.11.4.

... (truncated)

Patched versions: >= 1.11.4 Unaffected versions: none

Sourced from nokogiri's releases.

1.11.7 / 2021-06-02

• [CRuby] Backporting an upstream fix to XPath recursion depth limits which impacted some users of complex XPath queries. This issue is present in libxml 2.9.11 and 2.9.12. [#2257]

Checksums

SHA256:

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1.11.6 / 2021-05-26

Fixed

• [CRuby] DocumentFragment#path now does proper error-checking to handle behavior introduced in libxml > 2.9.10. In v1.11.4 and v1.11.5, calling DocumentFragment#path could result in a segfault.

1.11.5 / 2021-05-19

Fixed

[Windows CRuby] Work around segfault at process exit on Windows when using libxml2 system DLLs.

libxml 2.9.12 introduced new behavior to avoid memory leaks when unloading libxml2 shared libraries (see libxml/!66). Early testing caught this segfault on non-Windows platforms (see #2059 and libxml@956534e) but it was incompletely fixed and is still an issue on Windows platforms that are using system DLLs.

We work around this by configuring libxml2 in this situation to use its default memory management functions. Note that if Nokogiri is not on Windows, or is not using shared system libraries, it will will continue to configure libxml2 to use Ruby's memory management functions. Nokogiri::VERSION_INFO["libxml"]["memory_management"] will allow you to verify when the default memory management functions are being used. [#2241]

Added

Nokogiri::VERSION_INFO["libxml"] now contains the key "memory_management" to declare whether libxml2 is using its default memory management functions, or whether it uses the memory management functions from ruby. See above for more details.

1.11.4 / 2021-05-14

Security

[CRuby] Vendored libxml2 upgraded to v2.9.12 which addresses:

• CVE-2019-20388
• CVE-2020-24977

... (truncated)

Sourced from nokogiri's changelog.

1.11.7 / 2021-06-02

• [CRuby] Backporting an upstream fix to XPath recursion depth limits which impacted some users of complex XPath queries. This issue is present in libxml 2.9.11 and 2.9.12. [#2257]

1.11.6 / 2021-05-26

Fixed

• [CRuby] DocumentFragment#path now does proper error-checking to handle behavior introduced in libxml > 2.9.10. In v1.11.4 and v1.11.5, calling DocumentFragment#path could result in a segfault.

1.11.5 / 2021-05-19

Fixed

[Windows CRuby] Work around segfault at process exit on Windows when using libxml2 system DLLs.

libxml 2.9.12 introduced new behavior to avoid memory leaks when unloading libxml2 shared libraries (see libxml/!66). Early testing caught this segfault on non-Windows platforms (see #2059 and libxml@956534e) but it was incompletely fixed and is still an issue on Windows platforms that are using system DLLs.

We work around this by configuring libxml2 in this situation to use its default memory management functions. Note that if Nokogiri is not on Windows, or is not using shared system libraries, it will will continue to configure libxml2 to use Ruby's memory management functions. Nokogiri::VERSION_INFO["libxml"]["memory_management"] will allow you to verify when the default memory management functions are being used. [#2241]

Added

Nokogiri::VERSION_INFO["libxml"] now contains the key "memory_management" to declare whether libxml2 is using its default memory management functions, or whether it uses the memory management functions from ruby. See above for more details.

1.11.4 / 2021-05-14

Security

[CRuby] Vendored libxml2 upgraded to v2.9.12 which addresses:

• CVE-2019-20388
• CVE-2020-24977
• CVE-2021-3517
• CVE-2021-3518
• CVE-2021-3537
• CVE-2021-3541

Note that two additional CVEs were addressed upstream but are not relevant to this release. CVE-2021-3516 via xmllint is not present in Nokogiri, and CVE-2020-7595 has been patched in Nokogiri since v1.10.8 (see #1992).

Please see nokogiri/GHSA-7rrm-v45f-jp64 or #2233 for a more complete analysis of these CVEs and patches.

Dependencies

• [CRuby] vendored libxml2 is updated from 2.9.10 to 2.9.12. (Note that 2.9.11 was skipped because it was superseded by 2.9.12 a few hours after its release.)

... (truncated)

• 0a6681e version bump to v1.11.7
• de0844c test: add coverage for xpath recursion depth fix
• ed38fea Merge pull request #2258 from sparklemotion/2257-libxml2-xpath-recursion-limi...
• 1f6c661 fix: upstream libxml2 bug in calculating xpath query recursion depth
• a48c305 version bump to v1.11.6
• d7b58c3 Merge pull request #2252 from sparklemotion/2250-doc-frag-path-v1_11_x
• a1b0e6b update CHANGELOG
• d0f14d1 fix: DocumentFragment#path checks for error case in libxml 2.9.11+
• e43f521 version bump to v1.11.5
• 42354e4 Merge pull request #2243 from sparklemotion/flavorjones-v1_11_x-update-tests-...
• Additional commits viewable in compare view

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