Ubuntu Security Notice 6654-1 - It was discovered that Roundcube Webmail incorrectly sanitized characters in the linkrefs text messages. An attacker could possibly use this issue to execute a cross-site scripting attack.
460026cc73cc6675127f73b71d11e0359570d321c9e013f075f7ee551cfcf679Ubuntu Security Notice 6649-1 - Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. Alfred Peters discovered that Firefox did not properly manage memory when storing and re-accessing data on a networking channel. An attacker could potentially exploit this issue to cause a denial of service.
915d1dd9c871ef5fa18727920f32a507f24302608c703c4e810bc2c237c6b315Ubuntu Security Notice 6648-1 - It was discovered that a race condition existed in the AppleTalk networking subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Zhenghan Wang discovered that the generic ID allocator implementation in the Linux kernel did not properly check for null bitmap when releasing IDs. A local attacker could use this to cause a denial of service.
74220a0b0c8b546e1843028c546fb7b9f332ab5279db8baa8ddaf07d3915746eUbuntu Security Notice 6647-1 - It was discovered that a race condition existed in the ATM subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the Rose X.25 protocol implementation in the Linux kernel, leading to a use-after- free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
dc6419bae3374862f7e099238c6f62915d628b60e52c658d5d47d2442058067eUbuntu Security Notice 6646-1 - It was discovered that a race condition existed in the ATM subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the Rose X.25 protocol implementation in the Linux kernel, leading to a use-after- free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
263643db87a6432edb065900eea41c3a1d8ae0e9c08508a673c02ef018cf394aUbuntu Security Notice 6584-2 - USN-6584-1 fixed several vulnerabilities in Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. This update provides the corresponding updates for CVE-2021-33912 andCVE-2021-33913 in Ubuntu 16.04 LTS. Philipp Jeitner and Haya Shulman discovered that Libspf2 incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code.
c72593cd020b70c074deb6be89fd467cc478f83334792bd3c97e0f5753dae9cdUbuntu Security Notice 6645-1 - It was discovered that the netfilter connection tracker for netlink in the Linux kernel did not properly perform reference counting in some error conditions. A local attacker could possibly use this to cause a denial of service.
c31a439fa6efc6f45ddf70895ddbcdb15a0d2f1e6ccdfe2e0e752da89b5c1bb2Ubuntu Security Notice 6644-1 - It was discovered that LibTIFF incorrectly handled certain files. If a user were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause the application to crash, resulting in a denial of service. It was discovered that LibTIFF incorrectly handled certain image files with the tiffcp utility. If a user were tricked into opening a specially crafted image file, an attacker could possibly use this issue to cause tiffcp to crash, resulting in a denial of service.
ef3f4db4f26363a7b6f29905c846ae44e713361a0326d73013b608026cee7283Ubuntu Security Notice 6643-1 - Emre Durmaz discovered that NPM IP package incorrectly distinguished between private and public IP addresses. A remote attacker could possibly use this issue to perform Server-Side Request Forgery attacks.
c16ecfe30134498bd139552611380f432fae442982648114d6b239d58d36cbcbUbuntu Security Notice 6625-3 - Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service. Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during device removal. A privileged attacker could use this to cause a denial of service.
52bdeffe5f0a9bcabf5888bdf230cc21b6b378f00b6361fdcb2347a717f725efUbuntu Security Notice 6642-1 - Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled parsing large DNS messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Bind incorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service.
59690fe75ddf72adb23e500a05f4e810c75b29c755af18781f7010d4def3deacUbuntu Security Notice 6641-1 - Harry Sintonen discovered that curl incorrectly handled mixed case cookie domains. A remote attacker could possibly use this issue to set cookies that get sent to different and unrelated sites and domains.
a7d9ffd24a024ab8781ee9e6e2b5c442a80ad8acaf458870a637f085aae82d59Ubuntu Security Notice 6626-3 - Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service.
c4f05b80ddac576aade0f7ae79e18a25f3e6427f2d9176a2bd74aec2add4db82Ubuntu Security Notice 6640-1 - It was discovered that shadow was not properly sanitizing memory when running the password utility. An attacker could possibly use this issue to retrieve a password from memory, exposing sensitive information.
66fccfd58b58a4ce523efd3b5c9bd62c4adf984f4fd74bb57ad09a7a1939e1aeUbuntu Security Notice 6629-3 - USN-6629-1 fixed vulnerabilities in UltraJSON. This update provides the corresponding updates for Ubuntu 20.04 LTS. It was discovered that UltraJSON incorrectly handled certain input with a large amount of indentation. An attacker could possibly use this issue to crash the program, resulting in a denial of service. Jake Miller discovered that UltraJSON incorrectly decoded certain characters. An attacker could possibly use this issue to cause key confusion and overwrite values in dictionaries. It was discovered that UltraJSON incorrectly handled an error when reallocating a buffer for string decoding. An attacker could possibly use this issue to corrupt memory.
50be04630cf03d8f15f815dd6a94344ba4a09eeb74709bbf0914315704d4157cUbuntu Security Notice 6639-1 - It was discovered that a race condition existed in the ATM subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the AppleTalk networking subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
729831ae2fd2e2d037f3b0023e1e02b87125b330ee3c867a9edd370373e1911cUbuntu Security Notice 6628-2 - Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service.
8b210c8c777d4cc501999ec7007ed1d81cb230f6a188fd0f09171622aadeb0baUbuntu Security Notice 6638-1 - Marc Beatove discovered buffer overflows exit in EDK2. An attacker on the local network could potentially use this to impact availability or possibly cause remote code execution. It was discovered that a buffer overflows exists in EDK2's Network Package An attacker on the local network could potentially use these to impact availability or possibly cause remote code execution.
cb517471393f2b25d84672292a8731ab62b9d85dbfaf6f8ff61eb3870a2e1cb5Ubuntu Security Notice 6636-1 - It was discovered that ClamAV incorrectly handled parsing certain OLE2 files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. Amit Schendel discovered that the ClamAV ClamD service incorrectly handled the VirusEvent feature. An attacker able to connect to ClamD could possibly use this issue to execute arbitrary code.
4233521b1bfeb5ef13d5d7a96d44be5ec9fab356eb2b34b1c3a131adc45c3065Ubuntu Security Notice 6635-1 - It was discovered that the USB subsystem in the Linux kernel contained a race condition while handling device descriptors in certain situations, leading to a out-of-bounds read vulnerability. A local attacker could possibly use this to cause a denial of service. Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker could use this to cause a denial of service or possibly expose sensitive information.
b16b3c4f49f2049591b131f1367693ba4f54cc72d2d1b19001a952cc87282724Ubuntu Security Notice 6608-2 - It was discovered that the CIFS network file system implementation in the Linux kernel did not properly validate the server frame size in certain situation, leading to an out-of-bounds read vulnerability. An attacker could use this to construct a malicious CIFS image that, when operated on, could cause a denial of service or possibly expose sensitive information. Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle inactive elements in its PIPAPO data structure, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
a36fb866376042d55edb7600c47b39b6eea427e345f42f8acac97c6298960e3bUbuntu Security Notice 6626-2 - Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service.
f604bb78b46c5c78f8d5c3eebf5d47fd8329d33d9d972d5425768f75ed48b1e8Ubuntu Security Notice 6629-2 - USN-6629-1 fixed vulnerabilities in UltraJSON. This update provides the corresponding updates for Ubuntu 20.04 LTS. It was discovered that UltraJSON incorrectly handled certain input with a large amount of indentation. An attacker could possibly use this issue to crash the program, resulting in a denial of service. Jake Miller discovered that UltraJSON incorrectly decoded certain characters. An attacker could possibly use this issue to cause key confusion and overwrite values in dictionaries. It was discovered that UltraJSON incorrectly handled an error when reallocating a buffer for string decoding. An attacker could possibly use this issue to corrupt memory.
ec6ddcf81a1c32520be536e38ebdd283e58f5386914c40a18c8dc5490e39e31aUbuntu Security Notice 6629-1 - It was discovered that UltraJSON incorrectly handled certain input with a large amount of indentation. An attacker could possibly use this issue to crash the program, resulting in a denial of service. Jake Miller discovered that UltraJSON incorrectly decoded certain characters. An attacker could possibly use this issue to cause key confusion and overwrite values in dictionaries. It was discovered that UltraJSON incorrectly handled an error when reallocating a buffer for string decoding. An attacker could possibly use this issue to corrupt memory.
d35aa970db759e585e1e8439b5af8a9496efa3c84d58b5fde339a617a0f22a82Ubuntu Security Notice 6634-1 - Brennan Conroy discovered that .NET with SignalR did not properly handle malicious clients. An attacker could possibly use this issue to cause a denial of service. Bahaa Naamneh discovered that .NET with OpenSSL support did not properly parse X509 certificates. An attacker could possibly use this issue to cause a denial of service.
de10672913c1c439d6731061defe8ff1f177c00fb56026d2b2e18bbcd3e60f15
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