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In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.
23 affected packages
expat, apache2, apr-util, cmake, ghostscript...
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| expat | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| apache2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| apr-util | Not affected | Not affected | Not affected | Not affected | Not affected |
| cmake | Not affected | Not affected | Not affected | Not affected | Not affected |
| ghostscript | Not affected | Not affected | Not affected | Not affected | Not affected |
| texlive-bin | Not affected | Not affected | Not affected | Not affected | Not affected |
| xmlrpc-c | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| vnc4 | Not in release | Not in release | Not in release | — | Needs evaluation |
| wbxml2 | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| swish-e | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| insighttoolkit4 | Not in release | Not in release | Needs evaluation | Needs evaluation | Needs evaluation |
| cadaver | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| gdcm | Not affected | Not affected | Not affected | Not affected | Needs evaluation |
| ayttm | Not in release | Not in release | Not in release | — | — |
| cableswig | Not in release | Not in release | Not in release | — | — |
| coin3 | Not affected | Not affected | Not affected | Not affected | Needs evaluation |
| matanza | Ignored | Ignored | Ignored | Ignored | Needs evaluation |
| tdom | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| vtk | Not in release | Not in release | Not in release | — | — |
| smart | Not in release | Not in release | Not in release | — | Needs evaluation |
| firefox | Not affected | Not affected | Not affected | — | — |
| thunderbird | Not affected | Not affected | Not affected | — | — |
| libxmltok | Not in release | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).
23 affected packages
expat, apache2, apr-util, cmake, ghostscript...
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| expat | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| apache2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| apr-util | Not affected | Not affected | Not affected | Not affected | Not affected |
| cmake | Not affected | Not affected | Not affected | Not affected | Not affected |
| ghostscript | Not affected | Not affected | Not affected | Not affected | Not affected |
| texlive-bin | Not affected | Not affected | Not affected | Not affected | Not affected |
| xmlrpc-c | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| vnc4 | Not in release | Not in release | Not in release | — | Needs evaluation |
| wbxml2 | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| swish-e | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| insighttoolkit4 | Not in release | Not in release | Needs evaluation | Needs evaluation | Needs evaluation |
| cadaver | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| gdcm | Not affected | Not affected | Not affected | Not affected | Needs evaluation |
| ayttm | Not in release | Not in release | Not in release | — | — |
| cableswig | Not in release | Not in release | Not in release | — | — |
| coin3 | Not affected | Not affected | Not affected | Not affected | Needs evaluation |
| matanza | Ignored | Ignored | Ignored | Ignored | Needs evaluation |
| tdom | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| vtk | Not in release | Not in release | Not in release | — | — |
| smart | Not in release | Not in release | Not in release | — | Needs evaluation |
| firefox | Not affected | Not affected | Not affected | — | — |
| thunderbird | Not affected | Not affected | Not affected | — | — |
| libxmltok | Not in release | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.
1 affected package
thunderbird
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| thunderbird | Needs evaluation | Needs evaluation | Needs evaluation | — | — |
Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12.
1 affected package
thunderbird
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| thunderbird | Needs evaluation | Needs evaluation | Needs evaluation | — | — |
Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of...
9 affected packages
firefox, thunderbird, mozjs38, mozjs52, mozjs68...
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| firefox | Not affected | Not affected | Not affected | — | — |
| thunderbird | Not affected | Not affected | Vulnerable | — | — |
| mozjs38 | Not in release | Not in release | Not in release | — | Needs evaluation |
| mozjs52 | Not in release | Not in release | Not in release | Ignored | Ignored |
| mozjs68 | Not in release | Not in release | Not in release | Ignored | — |
| mozjs78 | Not in release | Not in release | Ignored | — | — |
| mozjs91 | Not in release | Not in release | Ignored | — | — |
| mozjs102 | Not in release | Ignored | Ignored | — | — |
| mozjs115 | Not in release | Ignored | Not in release | — | — |
Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have...
9 affected packages
firefox, thunderbird, mozjs38, mozjs52, mozjs68...
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| firefox | Not affected | Not affected | Not affected | — | — |
| thunderbird | Not affected | Not affected | Vulnerable | — | — |
| mozjs38 | Not in release | Not in release | Not in release | — | Needs evaluation |
| mozjs52 | Not in release | Not in release | Not in release | Ignored | Ignored |
| mozjs68 | Not in release | Not in release | Not in release | Ignored | — |
| mozjs78 | Not in release | Not in release | Ignored | — | — |
| mozjs91 | Not in release | Not in release | Ignored | — | — |
| mozjs102 | Not in release | Ignored | Ignored | — | — |
| mozjs115 | Not in release | Ignored | Not in release | — | — |
Memory safety bugs present in Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This...
9 affected packages
firefox, thunderbird, mozjs38, mozjs52, mozjs68...
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| firefox | Not affected | Not affected | Not affected | — | — |
| thunderbird | Not affected | Not affected | Vulnerable | — | — |
| mozjs38 | Not in release | Not in release | Not in release | — | Needs evaluation |
| mozjs52 | Not in release | Not in release | Not in release | Ignored | Ignored |
| mozjs68 | Not in release | Not in release | Not in release | Ignored | — |
| mozjs78 | Not in release | Not in release | Ignored | — | — |
| mozjs91 | Not in release | Not in release | Ignored | — | — |
| mozjs102 | Not in release | Ignored | Ignored | — | — |
| mozjs115 | Not in release | Ignored | Not in release | — | — |
Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
9 affected packages
firefox, thunderbird, mozjs38, mozjs52, mozjs68...
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| firefox | Not affected | Not affected | Not affected | — | — |
| thunderbird | Not affected | Not affected | Vulnerable | — | — |
| mozjs38 | Not in release | Not in release | Not in release | — | Needs evaluation |
| mozjs52 | Not in release | Not in release | Not in release | Ignored | Ignored |
| mozjs68 | Not in release | Not in release | Not in release | Ignored | — |
| mozjs78 | Not in release | Not in release | Ignored | — | — |
| mozjs91 | Not in release | Not in release | Ignored | — | — |
| mozjs102 | Not in release | Ignored | Ignored | — | — |
| mozjs115 | Not in release | Ignored | Not in release | — | — |
Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
9 affected packages
firefox, thunderbird, mozjs38, mozjs52, mozjs68...
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| firefox | Not affected | Not affected | Not affected | — | — |
| thunderbird | Not affected | Not affected | Vulnerable | — | — |
| mozjs38 | Not in release | Not in release | Not in release | — | Needs evaluation |
| mozjs52 | Not in release | Not in release | Not in release | Ignored | Ignored |
| mozjs68 | Not in release | Not in release | Not in release | Ignored | — |
| mozjs78 | Not in release | Not in release | Ignored | — | — |
| mozjs91 | Not in release | Not in release | Ignored | — | — |
| mozjs102 | Not in release | Ignored | Ignored | — | — |
| mozjs115 | Not in release | Ignored | Not in release | — | — |
Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
9 affected packages
firefox, thunderbird, mozjs38, mozjs52, mozjs68...
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| firefox | Not affected | Not affected | Not affected | — | — |
| thunderbird | Not affected | Not affected | Vulnerable | — | — |
| mozjs38 | Not in release | Not in release | Not in release | — | Needs evaluation |
| mozjs52 | Not in release | Not in release | Not in release | Ignored | Ignored |
| mozjs68 | Not in release | Not in release | Not in release | Ignored | — |
| mozjs78 | Not in release | Not in release | Ignored | — | — |
| mozjs91 | Not in release | Not in release | Ignored | — | — |
| mozjs102 | Not in release | Ignored | Ignored | — | — |
| mozjs115 | Not in release | Ignored | Not in release | — | — |