Last updated 4 July 2026

Last updated 4 July 2026

An issue was discovered in the fdlockedioctl function in drivers/block/floppy.c in the Linux kernel through 4.15.7. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR.

An issue was discovered in Exempi through 2.4.4. A certain case of a 0xffffffff length is mishandled in XMPFiles/source/FormatSupport/PSIRFileWriter.cpp, leading to a heap-based buffer over-read in the PSDMetaHandler::CacheFileData() function.

An issue was discovered in Exempi through 2.4.4. XMPFiles/source/FileHandlers/TIFFHandler.cpp mishandles a case of a zero length, leading to a heap-based buffer over-read in the MD5Update() function in third-party/zuid/interfaces/MD5.cpp.

An issue was discovered in Exempi through 2.4.4. XMPFiles/source/FormatSupport/WEBPSupport.cpp does not check whether a bitstream has a NULL value, leading to a NULL pointer dereference in the WEBP::VP8XChunk class.

An issue was discovered in Exempi through 2.4.4. There is a stack-based buffer over-read in the PostScriptMetaHandler::ParsePSFile() function in XMPFiles/source/FileHandlers/PostScriptHandler.cpp.

An issue was discovered in ZZIPlib 0.13.68. There is a bus error caused by the zzipparserootdirectory function of zip.c. Attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.

An issue was discovered in ZZIPlib 0.13.68. An invalid memory address dereference was discovered in zzipdiskfread in mmapped.c. The vulnerability causes an application crash, which leads to denial of service.

An issue was discovered in Django 2.0 before 2.0.3, 1.11 before 1.11.11, and 1.8 before 1.8.19. If django.utils.text.Truncator's chars() and words() methods were passed the html=True argument, they were extremely slow to evaluate certain inputs due to a catastrophic backtracking vulnerability in a regular expression. The chars() and words() methods are used to implement the truncatecharshtml and truncatewordshtml template filters, which were thus vulnerable.

An issue was discovered in Django 2.0 before 2.0.3, 1.11 before 1.11.11, and 1.8 before 1.8.19. The django.utils.html.urlize() function was extremely slow to evaluate certain inputs due to catastrophic backtracking vulnerabilities in two regular expressions (only one regular expression for Django 1.8.x). The urlize() function is used to implement the urlize and urlizetrunc template filters, which were thus vulnerable.

A NULL pointer dereference was found in net/rds/rdma.c:rdsrdmamap() function in the Linux kernel allowing local attackers to cause a system panic and a denial-of-service.

References:

https://patchwork.kernel.org/patch/10096441/

https://xorl.wordpress.com/2017/12/18/linux-kernel-rdma-null-pointer-dereference/

http://seclists.org/oss-sec/2018/q1/191

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f3069c6d33f6ae63a1668737bc78aaaa51bff7ca

Last updated 24 July 2024

An issue was discovered in FreeType 2 through 2.9. A NULL pointer dereference in the InsGETVARIATION() function within ttinterp.c could lead to DoS via a crafted font file.

In ZZIPlib 0.13.68, there is an uncontrolled memory allocation and a crash in the zzipparserootdirectory function of zzip/zip.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.

A flaw was found in ZZIPlib 0.13.67, there is a bus error caused by loading of a misaligned address (when handling disk64trailer local entries) in zzipfetchdisktrailer (zzip/zip.c). Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.

References: https://github.com/gdraheim/zziplib/issues/16

In ZZIPlib 0.13.67, there is a bus error caused by loading of a misaligned address in the zzipdiskfindfirst function of zzip/mmapped.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.

In ZZIPlib 0.13.67, there is a memory alignment error and bus error in the zzipfetchdisktrailer function of zzip/zip.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.

In ZZIPlib 0.13.67, 0.13.66, 0.13.65, 0.13.64, 0.13.63, 0.13.62, 0.13.61, 0.13.60, 0.13.59, 0.13.58, 0.13.57 and 0.13.56 there is a segmentation fault caused by invalid memory access in the zzipdiskfread function (zzip/mmapped.c) because the size variable is not validated against the amount of file->stored data.

Last updated 25 August 2025

Cross-site scripting (XSS) vulnerability in the web UI in Mailman before 2.1.26 allows remote attackers to inject arbitrary web script or HTML via a user-options URL.

In LibTIFF 4.0.9, there is an uncontrolled resource consumption in the TIFFSetDirectory function of tifdir.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted tif file. This occurs because the declared number of directory entries is not validated against the actual number of directory entries.

Last updated 4 July 2026

A flaw was found in php when creating a .phar file and configuring apache to handle phar files using php, when accessing invalid page the page name is reflected back to the user in the 404 response. This user input is not being sanitized and therefore it is vulnerable to a reflected XSS. Making, every site configured to run .phar files using php vulnerable.

References: https://bugs.php.net/bug.php?id=74782 https://bugs.php.net/bug.php?id=74782

Patch: https://gist.github.com/anonymous/70d2f6bac8db576d6386bd79c1e6e081

Last updated 25 August 2025

Last updated 25 August 2025

In the Linux kernel through 4.14.13, the rdscmsgatomic function in net/rds/rdma.c mishandles cases where page pinning fails or an invalid address is supplied, leading to an rdsatomicfreeop NULL pointer dereference.

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization).

It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire).

As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks.

Apache Tomcat versions 7.0.0 to 7.0.84, 8.0.0.RC1 to 8.0.49 and 8.5.0 to 8.5.27 does not properly handle the URL empty string ("") when used as part of a security constraint definition. This can lead to the security constraint being ignored, leading to unitended exposure of resources.

External References:

https://tomcat.apache.org/security-7.html#FixedinApacheTomcat7.0.85 https://tomcat.apache.org/security-8.html#FixedinApacheTomcat8.0.50 https://tomcat.apache.org/security-8.html#FixedinApacheTomcat8.5.28

Upstream Bug Report:

https://bz.apache.org/bugzilla/showbug.cgi?id=62067

Upstream Fixes:

Tomcat 7.0.x:

http://svn.apache.org/viewvc?view=rev&rev=1823309

Tomcat 8.0.x:

http://svn.apache.org/viewvc?view=rev&rev=1814827

Tomcat 8.5.x:

http://svn.apache.org/viewvc?view=rev&rev=1823307

Apache Tomcat versions 7.0.0 to 7.0.84, 8.0.0.RC1 to 8.0.49 and 8.5.0 to 8.5.27 only apply security constraints defined by Servlets once those Servlets are loaded. Depending on the order that Servlets load, some security constraints may not be applied leading to unintended resource exposure.

External References:

https://tomcat.apache.org/security-7.html#FixedinApacheTomcat7.0.85 https://tomcat.apache.org/security-8.html#FixedinApacheTomcat8.0.50 https://tomcat.apache.org/security-8.html#FixedinApacheTomcat8.5.28

Upstream Fixes:

Tomcat 7.0.x:

http://svn.apache.org/viewvc?view=rev&rev=1823322 http://svn.apache.org/viewvc?view=rev&rev=1824360

Tomcat 8.0.x:

http://svn.apache.org/viewvc?view=rev&rev=1823319 http://svn.apache.org/viewvc?view=rev&rev=1824359

Tomcat 8.5.x:

http://svn.apache.org/viewvc?view=rev&rev=1823314 http://svn.apache.org/viewvc?view=rev&rev=1824358