CVE-2026-6844
published 2026-04-22CVE-2026-6844: A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a…
PriorityP420medium5.5CVSS 3.1
AVLACLPRNUIRSUCNINAH
EPSS
0.10%
1.2th percentile
A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| gnu | binutils | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | openshift_container_platform | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
vendor_redhat5.5MEDIUM
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GHSA
GHSA-p33j-xffm-gxj7: A flaw was found in the `readelf` utility of the binutils package
ghsa_unreviewed·2026-04-22
CVE-2026-6844 [MEDIUM] CWE-400 GHSA-p33j-xffm-gxj7: A flaw was found in the `readelf` utility of the binutils package
A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.
Red Hat
binutils: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files
vendor_redhat·2026-04-13·CVSS 5.5
CVE-2026-6844 [MEDIUM] CWE-400 binutils: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files
binutils: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files
A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.
Statement: Moderate: A denial of service vulnerability in `readelf` can be triggered by processing a crafted ELF file, leading to resource exhaustion or a null pointer dereference. This issue affects Red H
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-6844 rizin: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files [fedora-all]
bugzilla·2026-04-22·CVSS 5.5
CVE-2026-6844 [MEDIUM] CVE-2026-6844 rizin: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files [fedora-all]
CVE-2026-6844 rizin: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-6844 radare2: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files [fedora-all]
bugzilla·2026-04-22·CVSS 5.5
CVE-2026-6844 [MEDIUM] CVE-2026-6844 radare2: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files [fedora-all]
CVE-2026-6844 radare2: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-6844 binutils: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files [fedora-all]
bugzilla·2026-04-22·CVSS 5.5
CVE-2026-6844 [MEDIUM] CVE-2026-6844 binutils: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files [fedora-all]
CVE-2026-6844 binutils: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-6844 binutils: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files
bugzilla·2026-04-21·CVSS 5.5
CVE-2026-6844 [MEDIUM] CVE-2026-6844 binutils: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files
CVE-2026-6844 binutils: Binutils: Denial of Service vulnerabilities in readelf via crafted ELF files
Two DoS vulnerabilities in readelf 2.46:
1. Resource exhaustion (CWE-400): crafted ELF triggers 6.3TB allocation, OOM kill
2. Null pointer deref (CWE-476): malformed sh_entsize/shoff causes SIGSEGV
Discovered via AFL++ fuzzing. PoC files attached to JSM ticket. Not publicly disclosed.
2026-04-22
Published