Integer Overflow to Buffer Overflow Affecting afterburn package, versions <5.10.0.git73.b97f772-160000.1.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.61% (48th percentile)

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  • Snyk IDSNYK-SLES1600-AFTERBURN-18345562
  • published28 Jul 2026
  • disclosed20 Jul 2026

Introduced: 20 Jul 2026

CVE-2026-25541  (opens in a new tab)
CWE-680  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 afterburn to version 5.10.0.git73.b97f772-160000.1.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream afterburn package and not the afterburn package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

Bytes is a utility library for working with bytes. From version 1.2.1 to before 1.11.1, Bytes is vulnerable to integer overflow in BytesMut::reserve. In the unique reclaim path of BytesMut::reserve, if the condition "v_capacity >= new_cap + offset" uses an unchecked addition. When new_cap + offset overflows usize in release builds, this condition may incorrectly pass, causing self.cap to be set to a value that exceeds the actual allocated capacity. Subsequent APIs such as spare_capacity_mut() then trust this corrupted cap value and may create out-of-bounds slices, leading to UB. This behavior is observable in release builds (integer overflow wraps), whereas debug builds panic due to overflow checks. This issue has been patched in version 1.11.1.

CVSS Base Scores

version 3.1