https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Fri, 02 Oct 2026 15:43:01 +0000 https://vulnerability.circl.lu/vuln/fkie_cve-2026-18220 <p>An out-of-bounds write vulnerability was found in the BFD library&#39;s DLX ELF backend (bfd/elf32-dlx.c) in GNU binutils. The dlx_rtype_to_howto() function maps ELF relocation types to internal howto structures but fails to perform adequate bounds checking on attacker-controlled relocation type values (via ELF32_R_TYPE(r_info)) before indexing into the dlx_elf_howto_table[] array. The DLX relocation type number space is non-contiguous (basic types 0-6, extended types at 0x10000+), but the default case in the switch statement allows arbitrary index values to reach the array access.</p> <p>A specially crafted ELF/DLX object file can trigger this out-of-bounds write when processed by any BFD-consuming tool (objdump, readelf, strip, ld, nm, objcopy). The vulnerability has been demonstrated to achieve arbitrary code execution via a File Stream Oriented Programming (FSOP) attack against glibc FILE structures (stderr), redirecting control flow to system().</p> <p>Attack scenarios include CI/CD pipelines performing automated binary analysis, developer workstations running objdump/readelf on untrusted binaries, automated security scanning or malware analysis tools invoking binutils, and package build systems processing third-party code.</p> <p>Note: This vulnerability is only exploitable when binutils is built with the DLX backend enabled (typically via --enable-targets=all).</p> <p>An out-of-bounds write vulnerability was found in the BFD library&#39;s DLX ELF backend (bfd/elf32-dlx.c) in GNU binutils. The dlx_rtype_to_howto() function maps ELF relocation types to internal howto structures but fails to perform adequate bounds checking on attacker-controlled relocation type values (via ELF32_R_TYPE(r_info)) before indexing into the dlx_elf_howto_table[] array. The DLX relocation type number space is non-contiguous (basic types 0-6, extended types at 0x10000+), but the default case in the switch statement allows arbitrary index values to reach the array access.</p> <p>A specially crafted ELF/DLX object file can trigger this out-of-bounds write when processed by any BFD-consuming tool (objdump, readelf, strip, ld, nm, objcopy). The vulnerability has been demonstrated to achieve arbitrary code execution via a File Stream Oriented Programming (FSOP) attack against glibc FILE structures (stderr), redirecting control flow to system().</p> <p>Attack scenarios include CI/CD pipelines performing automated binary analysis, developer workstations running objdump/readelf on untrusted binaries, automated security scanning or malware analysis tools invoking binutils, and package build systems processing third-party code.</p> <p>Note: This vulnerability is only exploitable when binutils is built with the DLX backend enabled (typically via --enable-targets=all).</p> https://vulnerability.circl.lu/vuln/fkie_cve-2026-18220 https://vulnerability.circl.lu/vuln/ghsa-9x84-fgv4-3chj <p>An out-of-bounds write vulnerability was found in the BFD library&#39;s DLX ELF backend (bfd/elf32-dlx.c) in GNU binutils. The dlx_rtype_to_howto() function maps ELF relocation types to internal howto structures but fails to perform adequate bounds checking on attacker-controlled relocation type values (via ELF32_R_TYPE(r_info)) before indexing into the dlx_elf_howto_table[] array. The DLX relocation type number space is non-contiguous (basic types 0-6, extended types at 0x10000+), but the default case in the switch statement allows arbitrary index values to reach the array access.</p> <p>A specially crafted ELF/DLX object file can trigger this out-of-bounds write when processed by any BFD-consuming tool (objdump, readelf, strip, ld, nm, objcopy). The vulnerability has been demonstrated to achieve arbitrary code execution via a File Stream Oriented Programming (FSOP) attack against glibc FILE structures (stderr), redirecting control flow to system().</p> <p>Attack scenarios include CI/CD pipelines performing automated binary analysis, developer workstations running objdump/readelf on untrusted binaries, automated security scanning or malware analysis tools invoking binutils, and package build systems processing third-party code.</p> <p>Note: This vulnerability is only exploitable when binutils is built with the DLX backend enabled (typically via --enable-targets=all).</p> <p>An out-of-bounds write vulnerability was found in the BFD library&#39;s DLX ELF backend (bfd/elf32-dlx.c) in GNU binutils. The dlx_rtype_to_howto() function maps ELF relocation types to internal howto structures but fails to perform adequate bounds checking on attacker-controlled relocation type values (via ELF32_R_TYPE(r_info)) before indexing into the dlx_elf_howto_table[] array. The DLX relocation type number space is non-contiguous (basic types 0-6, extended types at 0x10000+), but the default case in the switch statement allows arbitrary index values to reach the array access.</p> <p>A specially crafted ELF/DLX object file can trigger this out-of-bounds write when processed by any BFD-consuming tool (objdump, readelf, strip, ld, nm, objcopy). The vulnerability has been demonstrated to achieve arbitrary code execution via a File Stream Oriented Programming (FSOP) attack against glibc FILE structures (stderr), redirecting control flow to system().</p> <p>Attack scenarios include CI/CD pipelines performing automated binary analysis, developer workstations running objdump/readelf on untrusted binaries, automated security scanning or malware analysis tools invoking binutils, and package build systems processing third-party code.</p> <p>Note: This vulnerability is only exploitable when binutils is built with the DLX backend enabled (typically via --enable-targets=all).</p> https://vulnerability.circl.lu/vuln/ghsa-9x84-fgv4-3chj https://vulnerability.circl.lu/vuln/opensuse-su-2026:11932-1 <p>binutils-2.47-1.1 on GA media</p> <p>binutils-2.47-1.1 on GA media</p> https://vulnerability.circl.lu/vuln/opensuse-su-2026:11932-1 https://vulnerability.circl.lu/vuln/ubuntu-cve-2026-18220 <p><strong>Withdrawn by the publisher.</strong></p> <p><strong>Affected:</strong> Ubuntu:Pro:14.04:LTS: binutils, Ubuntu:Pro:16.04:LTS: binutils, Ubuntu:Pro:18.04:LTS: binutils, Ubuntu:Pro:20.04:LTS: binutils, Ubuntu:22.04:LTS: binutils, Ubuntu:24.04:LTS: binutils, Ubuntu:26.04:LTS: binutils</p> <p>An out-of-bounds write vulnerability was found in the BFD library&#39;s DLX ELF backend (bfd/elf32-dlx.c) in GNU binutils. The dlx_rtype_to_howto() function maps ELF relocation types to internal howto structures but fails to perform adequate bounds checking on attacker-controlled relocation type values (via ELF32_R_TYPE(r_info)) before indexing into the dlx_elf_howto_table[] array. The DLX relocation type number space is non-contiguous (basic types 0-6, extended types at 0x10000+), but the default case in the switch statement allows arbitrary index values to reach the array access. A specially crafted ELF/DLX object file can trigger this out-of-bounds write when processed by any BFD-consuming tool (objdump, readelf, strip, ld, nm, objcopy). The vulnerability has been demonstrated to achieve arbitrary code execution via a File Stream Oriented Programming (FSOP) attack against glibc FILE structures (stderr), redirecting control flow to system(). Attack scenarios include CI/CD pipelines performing automated binary analysis, developer workstations running objdump/readelf on untrusted binaries, automated security scanning or malware analysis tools invoking binutils, and package build systems processing third-party code. Note: This vulnerability is only exploitable when binutils is built with the DLX backend enabled (typically via --enable-targets=all).</p> <p><strong>Withdrawn by the publisher.</strong></p> <p><strong>Affected:</strong> Ubuntu:Pro:14.04:LTS: binutils, Ubuntu:Pro:16.04:LTS: binutils, Ubuntu:Pro:18.04:LTS: binutils, Ubuntu:Pro:20.04:LTS: binutils, Ubuntu:22.04:LTS: binutils, Ubuntu:24.04:LTS: binutils, Ubuntu:26.04:LTS: binutils</p> <p>An out-of-bounds write vulnerability was found in the BFD library&#39;s DLX ELF backend (bfd/elf32-dlx.c) in GNU binutils. The dlx_rtype_to_howto() function maps ELF relocation types to internal howto structures but fails to perform adequate bounds checking on attacker-controlled relocation type values (via ELF32_R_TYPE(r_info)) before indexing into the dlx_elf_howto_table[] array. The DLX relocation type number space is non-contiguous (basic types 0-6, extended types at 0x10000+), but the default case in the switch statement allows arbitrary index values to reach the array access. A specially crafted ELF/DLX object file can trigger this out-of-bounds write when processed by any BFD-consuming tool (objdump, readelf, strip, ld, nm, objcopy). The vulnerability has been demonstrated to achieve arbitrary code execution via a File Stream Oriented Programming (FSOP) attack against glibc FILE structures (stderr), redirecting control flow to system(). Attack scenarios include CI/CD pipelines performing automated binary analysis, developer workstations running objdump/readelf on untrusted binaries, automated security scanning or malware analysis tools invoking binutils, and package build systems processing third-party code. Note: This vulnerability is only exploitable when binutils is built with the DLX backend enabled (typically via --enable-targets=all).</p> https://vulnerability.circl.lu/vuln/ubuntu-cve-2026-18220