Description
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
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| abseil | abseil-cpp | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | abseil | 20240722.0-3 | — |
| Debian 13 | abseil | 20240722.0-3 | — |
| Debian 12 | abseil | 20220623.1-1+deb12u1 | — |
| Debian 11 | abseil | 0~20200923.3-2+deb11u1 | DLA-4116-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | abseil | 20240722.0-3ubuntu1 | — |
| Ubuntu 24.04 LTS | abseil | 20220623.1-3.1ubuntu3.2 | USN-7505-1 |
| Ubuntu 22.04 LTS | abseil | 0~20210324.2-2ubuntu0.2 | USN-7505-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | abseil-cpp | 20240116.3-150600.19.6.1 | SUSE-SU-2026:0338-1 |
| SLES 12 SP5 | abseil-cpp | 20240116.3-8.6.1 | SUSE-SU-2026:0412-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.1 | abseil-cpp | 20230802.3-slfo.1.1_1.1 | SUSE-SU-2026:20361-1 |
| SLE Micro 6.0 | abseil-cpp | 20230802.3-1.1 | SUSE-SU-2026:20268-1 |
| SLE Micro 5.5 | abseil-cpp | 20240116.3-150500.13.10.1 | SUSE-SU-2026:0381-1 |
| SLE Micro 5.4 | abseil-cpp | 20240116.3-150500.13.10.1 | SUSE-SU-2026:0381-1 |
| SLE Micro 5.3 | abseil-cpp | 20230802.3-150400.10.7.1 | SUSE-SU-2026:0576-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | abseil-cpp | 20250814.0-2.1 | openSUSE-SU-2025:15473-1 |
| openSUSE Leap 15.6 | abseil-cpp | 20240116.3-150600.19.6.1 | SUSE-SU-2026:0338-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | abseil-cpp +1 | 20220623.1-4.amzn2023.0.2 | ALAS2023-2025-1042 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | abseil-cpp | 20240116.0-3 | — |
| Azure Linux 3 | mysql | 8.0.45-2 | — |
| Azure Linux 2 (CBL-Mariner) | abseil-cpp | 20220623.0-2 | — |
| Azure Linux 2 (CBL-Mariner) | mysql | No fix yet | — |
Advisories 10
- USN-7505-1 abseil vulnerability Ubuntu Security Notices (USN) · Apr 27, 2026
- openSUSE-SU-2025:15473-1 abseil-cpp-devel-20250814.0-2.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20361-1 Security update for abseil-cpp SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20268-1 Security update for abseil-cpp SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0576-1 Security update for abseil-cpp SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0412-1 Security update for abseil-cpp SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0338-1 Security update for abseil-cpp SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0381-1 Security update for abseil-cpp SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-4116-1 abseil - security update Debian Security (DSA / DLA) · Mar 9, 2026
- ALAS2023-2025-1042 Moderate: abseil-cpp security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 23, 2025