CVE-2025-0838

There exists a heap buffer overflow vulnerable in Abseil-cpp. The sized constructors, reserve(), and rehash() methods of absl::{flat,node}hash{set,map} did not impose an upper bound on their size argument. As a result, it was possible for a caller to pass a very large size that would cause an integer overflow when computing the size of the container's backing store, and a subsequent out-of-bounds memory write. Subsequent accesses to the container might also access out-of-bounds memory. We recommend upgrading past commit 5a0e2cb5e3958dd90bb8569a2766622cb74d90c1

References

Affected packages

Git / github.com/abseil/abseil-cpp

Affected ranges

Type

GIT

Repo

https://github.com/abseil/abseil-cpp

Events

Introduced

Fixed

9ac7062b1860d895fb5a8cbf58c3e9ef8f674b5f

Fixed

5a0e2cb5e3958dd90bb8569a2766622cb74d90c1

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "20250127.0"
        }
    ]
}

Affected versions

20250127.*

20250127.rc1

Database specific

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "11.0"
            }
        ]
    }
]

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-0838.json"