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Debian Security Notices
- DSA-6417-1 libheif - security update
Multiple security issues were discovered in libheif, an ISO/IEC 23008-12HEIF and AVIF image file format decoder and encoder, which may result indenial of service, the disclosure of sensitive memory contents or,potentially, the execution of arbitrary code if a malformed image file isprocessed.
Note that in the fix for CVE-2026-47178, a heap out-of-bounds write in theuncompressed tile decoder, the affected format combinations are now rejectedwith heif_error_Unsupported_feature: uncompressed images with 4:2:0 or 4:2:2chroma subsampling that are tiled, or that use row or pixel interleave.Upstream corrected the offending arithmetic, but only after a restructuringof the uncompressed decoder that is not present in the version shipped inthe stable distribution. Images in these configurations will no longerdecode.
https://security-tracker.debian.org/tracker/DSA-6417-1
- DSA-6416-1 jq - security update
Multiple security issues were discovered in jq, a command-line JSONprocessor, which could result in denial of service or potentially theexecution of arbitrary code when processing untrusted input.
This update additionally addresses three issues for which no CVE has beenassigned: GHSA-ggc9-rpv2-xgpm, GHSA-gvwx-xj9r-3frq and GHSA-gf4g-95wj-4q4r.
Two changes in behaviour follow from the fixes above. An operation whoseresult would exceed the internal string length limit, such as repeatingor escaping a very large string, now terminates with the error "Stringtoo long" instead of returning a truncated result. A comparison orcontainment check on a deeply nested value now reports an error ratherthan recursing until the stack is exhausted. Filters relying on theprevious behaviour will report an error where they previously appearedto succeed.
https://security-tracker.debian.org/tracker/DSA-6416-1
- DSA-6414-1 udisks2 - security update
The following vulnerability has been discovered in the UDisks storagedaemon:
CVE-2026-7867
Azizcan Dastan and Ozlem Ozan discovered a local privilege escalation vulnerability in udisks2 involving the Filesystem.Mount D-Bus method. Using the 'as-user' option, an unprivileged local user can in some cases influence the mount execution path so that a filesystem mount is performed in a privileged/root context without the expected PolicyKit authorization behavior.
https://security-tracker.debian.org/tracker/DSA-6414-1
- DSA-6412-1 botan3 - security update
Multiple security issues were discovered in Botan, a C++ cryptographylibrary, which could result in denial of service, certificate validationbypass or authentication bypass.
These issues have been addressed by updating botan3 to the new upstreamrelease 3.12.0. As a consequence this update changes the SONAME of theshared library, and the runtime library package is renamed fromlibbotan-3-7 to libbotan-3-12. No package in the stable distribution linksagainst the library, so no other packages in trixie are affected by thischange.
The libbotan-3-7 package is no longer built and will not be removedautomatically on upgrade if it had been installed manually. Locally builtor third-party software linking against libbotan-3-7 needs to be rebuiltagainst libbotan-3-12, after which the old library package can be removed.
https://security-tracker.debian.org/tracker/DSA-6412-1
- DSA-6411-1 aom - security update
Multiple vulnerabilities were discovered in aom, the referenceimplementation of the AV1 video codec. All of them affect the encoder;applications that only decode AV1 video are not affected.
CVE-2026-56208
In look-ahead processing (LAP) mode the first-pass statistics buffer was sized from the configured lag-in-frames alone, leaving it shorter than the longest group of pictures the encoder may analyse. Together with an off-by-one in the number of frames considered, this allowed the encoder to read and write outside the allocation, resulting in denial of service or potentially the execution of arbitrary code.
CVE-2026-56209, CVE-2026-56210, CVE-2026-56211
The AOME_SET_SPATIAL_LAYER_ID and AV1E_SET_SVC_LAYER_ID codec controls did not validate the supplied scalable video coding (SVC) layer identifiers against the number of layers actually configured. A negative or too large identifier led to an out-of-bounds read of the layer context array, an out-of-bounds write through the cyclic refresh map pointer, and potentially the execution of arbitrary code. Exploitation requires an application that allows an attacker to influence the encoder's SVC configuration.
Additionally this update validates the configured number of spatial andtemporal layers, which the affected version accepted without any rangecheck.
https://security-tracker.debian.org/tracker/DSA-6411-1
- DSA-6398-1 webkit2gtk - security update
The following vulnerabilities have been discovered in the WebKitGTKweb engine:
CVE-2024-4367
Thomas Rinsma discovered that a type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution in the PDF.js context.
CVE-2026-28847
DARKNAVY, an anonymous researcher and Daniel Rhea discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-28883
Kwak Kiyong discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-28901
Joshua Rogers, Luigino Camastra, Igor Morgenstern, Guido Vranken, Maher Azzouzi and Ngan Nguyen discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-28902
Tristan Madani and Nathaniel Oh discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-28903
Mateusz Krzywicki discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-28904
Luka Racki discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-28905
Yuhao Hu, Yuanming Lai, Chenggang Wu, and Zhe Wang discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-28907
Cantina discovered that processing maliciously crafted web content may prevent Content Security Policy from being enforced.
CVE-2026-28942
Milad Nasr and Nicholas Carlini discovered that processing maliciously crafted web content may lead to an unexpected Safari crash.
CVE-2026-28946
Gia Bui, dr3dd, and w0wbox discovered that processing maliciously crafted web content may lead to an unexpected Safari crash.
CVE-2026-28947
dr3dd discovered that processing maliciously crafted web content may lead to an unexpected Safari crash.
CVE-2026-28953
Maher Azzouzi discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-28955
wac and Kookhwan Lee discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-28958
Cantina discovered that an app may be able to access sensitive user data.
CVE-2026-39872
Utkarsh Pal and Ignacio Sanmillan discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43658
Do Young Park discovered that processing maliciously crafted web content may lead to an unexpected Safari crash.
CVE-2026-43660
Cantina discovered that processing maliciously crafted web content may prevent Content Security Policy from being enforced.
CVE-2026-43663
Soyeon Park, Amy Burnett, Khai Tran, sherkito, Kota Toda, HexRabbit, NiNi, Tristan Madani and Brian Carpenter discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43676
Mateusz Krzywicki, dr3dd, and Tommy DeVoss discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43699
Tommy DeVoss discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43701
Aaron Grattafiori discovered that a malicious website may be able to process restricted web content outside the sandbox.
CVE-2026-43705
dr3dd discovered that processing maliciously crafted web content may lead to memory corruption.
CVE-2026-43707
Amy Burnett discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43712
Kwak Kiyong, Song Nuri, and Tristan Madani discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43713
Jody Ritonga discovered that visiting a website may leak sensitive data.
CVE-2026-43715
Milad Nasr and Nicholas Carlini discovered that processing maliciously crafted web content may lead to memory corruption.
CVE-2026-43716
Tuan, Duc, Amy Burnett and Evan Lambert discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43720
Gia Bui and Josef Korbel discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43721
Idan Masas discovered that a malicious website may be able to silently hijack clipboard data.
CVE-2026-43725
Luke Francis discovered that a malicious website may be able to process restricted web content outside the sandbox.
CVE-2026-43726
Josef Korbel, Tristan Madani, Gia Bui and Narendra Singh discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43727
Tommy DeVoss, Gia Bui and Gurpreet Shergill discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43731
dr3dd discovered that processing maliciously crafted web content may lead to memory corruption.
CVE-2026-43732
Nan Wang discovered that processing maliciously crafted web content may disclose sensitive user information.
CVE-2026-43734
Jonathan Alush-Aben discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43740
Nathaniel Oh and Arni Hardarson discovered that processing maliciously crafted web content may result in the disclosure of process memory.
CVE-2026-43742
Yulia Mertsalova discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2026-43745
Amy Burnett and Khai Tran discovered that processing maliciously crafted web content may lead to an unexpected process crash.
https://security-tracker.debian.org/tracker/DSA-6398-1
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