Acer Altos T110 F3 UEFI DXE Driver stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

A vulnerability was found in Acer Altos T110 F3, AP130 F2, Aspire 1600X, Aspire 1602M, Aspire 7600U, Aspire MC605, Aspire TC-105, Aspire TC-120, Aspire U5-620, Aspire X1935, Aspire X3475, Aspire X3995, Aspire XC100, Aspire XC600, Aspire Z3-615, Veriton E430G, Veriton B630_49, Veriton E430 and Veriton M2110G. It has been declared as critical. Affected by this vulnerability is an unknown code block of the component UEFI DXE Driver. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

There is a stack buffer overflow vulnerability, which could lead to arbitrary code execution in UEFI DXE driver on some Acer products. An attack could exploit this vulnerability to escalate privilege from ring 3 to ring 0, and hijack control flow during UEFI DXE execution. This affects Altos T110 F3 firmware version <= P13 (latest) and AP130 F2 firmware version <= P04 (latest) and Aspire 1600X firmware version <= P11.A3L (latest) and Aspire 1602M firmware version <= P11.A3L (latest) and Aspire 7600U firmware version <= P11.A4 (latest) and Aspire MC605 firmware version <= P11.A4L (latest) and Aspire TC-105 firmware version <= P12.B0L (latest) and Aspire TC-120 firmware version <= P11-A4 (latest) and Aspire U5-620 firmware version <= P11.A1 (latest) and Aspire X1935 firmware version <= P11.A3L (latest) and Aspire X3475 firmware version <= P11.A3L (latest) and Aspire X3995 firmware version <= P11.A3L (latest) and Aspire XC100 firmware version <= P11.B3 (latest) and Aspire XC600 firmware version <= P11.A4 (latest) and Aspire Z3-615 firmware version <= P11.A2L (latest) and Veriton E430G firmware version <= P21.A1 (latest) and Veriton B630_49 firmware version <= AAP02SR (latest) and Veriton E430 firmware version <= P11.A4 (latest) and Veriton M2110G firmware version <= P21.A3 (latest) and Veriton M2120G fir.

The weakness was disclosed 09/23/2022. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2022-30426 since 05/09/2022. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/23/2022).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.0
VulDB Temp Score: 7.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
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Exploitinginfo

Class: Memory corruption
CWE: CWE-121 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

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Current Price Estimation: 🔒

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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: no mitigation known
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0-Day Time: 🔒

Timelineinfo

05/09/2022 CVE reserved
09/23/2022 +137 days Advisory disclosed
09/23/2022 +0 days VulDB entry created
09/23/2022 +0 days VulDB last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2022-30426 (🔒)

Entryinfo

Created: 09/23/2022 08:26 AM
Changes: (21) vulnerability_cvss2_vuldb_basescore vulnerability_cvss2_vuldb_tempscore vulnerability_cvss2_vuldb_av vulnerability_cvss2_vuldb_ac vulnerability_cvss2_vuldb_au vulnerability_cvss2_vuldb_ci vulnerability_cvss2_vuldb_ii vulnerability_cvss2_vuldb_ai vulnerability_cvss2_vuldb_e vulnerability_cvss2_vuldb_rl vulnerability_cvss2_vuldb_rc vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss3_vuldb_basescore vulnerability_cvss3_vuldb_tempscore vulnerability_cvss3_vuldb_av vulnerability_cvss3_vuldb_pr vulnerability_cvss3_vuldb_e vulnerability_cvss3_vuldb_rl advisory_date exploit_price_0day
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