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ALSA-2021:2575 — Moderate: lz4 security update

Affected: AlmaLinux:8: lz4, AlmaLinux:8: lz4-devel, AlmaLinux:8: lz4-libs

The lz4 packages provide support for LZ4, a very fast, lossless compression algorithm that provides compression speeds of 400 MB/s per core and scales with multicore CPUs. It also features an extremely fast decoder that reaches speeds of multiple GB/s per core and typically reaches RAM speed limits on multicore systems.

Security Fix(es):

* lz4: memory corruption due to an integer overflow bug caused by memmove argument (CVE-2021-3520)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2021-05259

Withdrawn: BELL-CVE-2021-3520 — CVE-2021-3520 does not affect BellSoft software

Withdrawn by the publisher.

certfr-2021-avi-791 — De multiples vulnérabilités ont été découvertes dans les produits IBM. Certaines d'entre elles permettent à un attaquan…

certfr-2021-avi-791

EUVD-2026-20982

fkie_cve-2021-3520

There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.

GHSA-gmc7-pqv9-966m

gsd-2021-3520

ICSA-23-348-10 — Siemens SIMATIC S7-1500

expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE. shadow: TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees run-mailcap in the Debian mime-support package before 3.52-1+deb7u1 allows context-dependent attackers to execute arbitrary commands via shell metacharacters in a filename. In Python (aka CPython) up to 3.10.8, the mailcap module does not add escape characters into commands discovered in the system mailcap file. This may allow attackers to inject shell commands into applications that call mailcap.findmatch with untrusted input (if they lack validation of user-provided filenames or arguments). The fix is also back-ported to 3.7, 3.8, 3.9 Use-after-free vulnerability in bzip2recover in bzip2 1.0.6 allows remote attackers to cause a denial of service (crash) via a crafted bzip2 file, related to block ends set to before the start o…

OESA-2021-1245 — lz4 security update

Affected: openEuler:20.03-LTS-SP1: lz4

LZ4 is lossless compression algorithm, providing compression speed > 500 MB/s per core (>0.15 Bytes/cycle). It features an extremely fast decoder, with speed in multiple GB/s per core (~1 Byte/cycle). A high compression derivative, called LZ4_HC, is available, trading customizable CPU time for compression ratio. Security Fix(es): There s a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.(CVE-2021-3520)

openSUSE-SU-2021:0760-1 — Security update for lz4

Security update for lz4

RHBA-2021:2854 — Red Hat Bug Fix Advisory: Migration Toolkit for Containers (MTC) 1.4.6 release advisory

libwebp: heap-based buffer overflow in PutLE16() nss: TLS 1.3 CCS flood remote DoS Attack openldap: NULL pointer dereference for unauthenticated packet in slapd kernel: security bypass in certs/blacklist.c and certs/system_keyring.c jetty: local temporary directory hijacking vulnerability jetty: buffer not correctly recycled in Gzip Request inflation jetty: request containing multiple Accept headers with a large number of "quality" parameters may lead to DoS libwebp: heap-based buffer overflow in WebPDecode*Into functions libwebp: use-after-free in EmitFancyRGB() in dec/io_dec.c libxml2: Use-after-free in xmlEncodeEntitiesInternal() in entities.c libxml2: Heap-based buffer overflow in xmlEncodeEntitiesInternal() in entities.c libxml2: Use-after-free in xmlXIncludeDoProcess() in xinclude.c lz4: memory corruption due to an integer overflow bug caused by memmove argument libxml2: NULL pointer dereference when post-validating mixed content parsed in recovery mode libxml2: Exponential entity expansion attack bypasses all existing protection mechanisms rpm: Signature checks bypass via corrupted rpm package jenkins-2-plugins/config-file-provider: Does not configure its XML parser to prevent XML external entity (XXE) attacks. jenkins-2-plugins/config-file-provider: Does not correctly perform permission checks in several HTTP endpoints. jenkins-2-plugins/config-file-provider: does not require POST requests for an HTTP endpoint, resulting in a cross-site request forgery (CSRF) vulnera…

RUSTSEC-2022-0051 — Memory corruption in liblz4

Affected: crates.io: lz4-sys

lz4-sys up to v1.9.3 bundles a version of liblz4 that is vulnerable to [CVE-2021-3520](https://nvd.nist.gov/vuln/detail/CVE-2021-3520).

Attackers could craft a payload that triggers an integer overflow upon decompression, causing an out-of-bounds write.

The flaw has been corrected in version v1.9.4 of liblz4, which is included in lz4-sys 1.9.4.

SUSE-SU-2021:1613-1 — Security update for lz4

Security update for lz4

UBUNTU-CVE-2021-3520

Affected: Ubuntu:Pro:14.04:LTS: lz4, Ubuntu:Pro:16.04:LTS: lz4, Ubuntu:18.04:LTS: lz4, Ubuntu:20.04:LTS: lz4

WID-SEC-W-2022-0721 — Red Hat Enterprise Linux: Mehrere Schwachstellen

Ein entfernter, anonymer, authentifizierter oder lokaler Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um beliebigen Programmcode auszuführen und einen Denial of Service Zustand herzustellen.