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MEDIUM Updates Debian Security

DSA-6411-1 aom - security update

  • What: Security update for aom AV1 video codec
  • Impact: Fixes multiple encoder-related vulnerabilities
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[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index] [SECURITY] [DSA 6411-1] aom security update To: debian-security-announce@lists.debian.org Subject: [SECURITY] [DSA 6411-1] aom security update From: Aron Xu <aron@debian.org> Date: Wed, 05 Aug 2026 02:13:12 +0000 Message-id: <[🔎] E1wrR84-0000000E4AE-49Rp@seger.debian.org> Reply-to: debian-security-announce-request@lists.debian.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6411-1 security@debian.org https://www.debian.org/security/ Aron Xu August 05, 2026 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : aom CVE ID : CVE-2026-56208 CVE-2026-56209 CVE-2026-56210 CVE-2026-56211 Debian Bug : 1140428 Multiple vulnerabilities were discovered in aom, the reference implementation 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 and temporal layers, which the affected version accepted without any range check. For the stable distribution (trixie), these problems have been fixed in version 3.12.1-1+deb13u1. We recommend that you upgrade your aom packages. For the detailed security status of aom please refer to its security tracker page at: https://security-tracker.debian.org/tracker/aom Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEExq6D0hxncEPaPayX+GQ1dHE8m64FAmpymvEACgkQ+GQ1dHE8 m65yAwf7Bmv3XjbqMQJGgM019C+Fc8RmH0pHf9jUiZxodg3jjynmKCbdG0ovwJBm jMmZE7SFoEh9PRAvqltx1+dMcDYpapchsBvcwST/uKYQnnTv6ff6hk+P+TQYmGnP xqr0OiA8TCrd0486a4tgnbAnNd2mXg5NWQdsbns99WjByHEeicSNz/NjUn0SAzd0 +UzuMEIJy+LIgurVTArWSg9ukXKTyth5e1turLBt+wEijvYH7SSss9LAixcJmN+T d8Jhp9G4ZWWbMvEVJDSEkme9vA0vs0G3AsnsqiIpNGvxuw4VXEWIhh0RGoLiLlg9 al3UedPkX5YiQeMkPSXNYKSbSUvvoA== =nGjp -----END PGP SIGNATURE----- Reply to: debian-security-announce@lists.debian.org Aron Xu (on-list) Aron Xu (off-list) Prev by Date: [SECURITY] [DSA 6410-1] libssh security update Next by Date: [SECURITY] [DSA 6412-1] botan3 security update Previous by thread: [SECURITY] [DSA 6410-1] libssh security update Next by thread: [SECURITY] [DSA 6412-1] botan3 security update Index(es): Date Thread

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